There is a version of watch collecting that is purely financial — buying watches the way you buy stocks, with an eye on appreciation, liquidity, and exit strategy. This version of collecting has become increasingly visible in the last decade, amplified by auction records, grey market premiums, and the specific cultural moment that made a Patek Philippe Nautilus worth more than a small apartment.
And then there is watch collecting as it has existed for most of its history — as a practice rooted in genuine appreciation for objects that are worth appreciating. For the craftsmanship they represent. For the design intelligence behind them. For the heritage they carry and the stories they tell. For the specific pleasure of wearing something mechanical on your wrist and understanding, in some small way, what it took to make it.
This guide is about the second version. Not because the financial dimension is unimportant — it isn't — but because the financial dimension alone produces a fundamentally unsatisfying collecting experience. The people who collect watches purely as investments own watches they're afraid to wear. The people who collect watches because they genuinely love them own watches that become more interesting the longer they keep them.
Understanding what actually makes a watch worth collecting — the criteria that serious collectors apply, consciously or not, when they make acquisitions — is the foundation of a collecting practice that remains satisfying over time. And it turns out that many of those criteria point toward something that the traditional watch collecting conversation has been slow to acknowledge: Seiko mod watches, when built to the right standard, meet more of them than most people expect.
Part One: The Myth of the Investment Watch
Before getting into what makes a watch worth collecting, it's worth spending time on what doesn't — or at least, what shouldn't — be the primary criterion.
The Investment Argument and Its Limits
The last decade of watch collecting has been shaped, more than any other single force, by the secondary market appreciation of certain key references. The Rolex Daytona. The Patek Philippe Nautilus. The Audemars Piguet Royal Oak. These watches appreciated dramatically in secondary market value through the 2010s and early 2020s, generating returns that exceeded many conventional investment vehicles and bringing a new generation of buyers into the market whose primary motivation was financial rather than horological.
This is understandable. When a watch you paid $13,000 for is suddenly worth $40,000, it's difficult to separate your appreciation for the object from your appreciation for the return. And when that story becomes widely known — when magazine articles and YouTube channels and Instagram accounts all amplify the narrative of watches as appreciating assets — the influx of investment-motivated buyers creates a self-reinforcing cycle that pushes prices higher still.
The problem with this version of watch collecting is that it produces a specific and recognizable kind of unhappiness. Investment-motivated collectors own watches they are afraid to scratch. They monitor grey market prices the way day traders monitor stock tickers. They make acquisition decisions based on what other people will want to buy rather than what they themselves want to own. And when the market corrects — as it has, in various ways, for various references — they experience losses that are both financial and personal, because the object they bought for appreciation has depreciated in the only dimension they cared about.
The deeper problem is that the investment narrative fundamentally misunderstands what watches are. A watch is not a store of value. It is a precision object — a complex mechanical device, in the case of automatics, that represents thousands of hours of engineering, manufacturing, and design work. Its value, in any meaningful sense, is in what it is and what it does rather than in what someone else will pay for it next year.
What Appreciation Actually Signals
This is not to say that appreciation is meaningless. Secondary market prices for watches reflect something real — collective judgment about which objects are worth owning, expressed through the prices buyers are willing to pay. A watch that appreciates significantly over time is almost always a watch that has proven its design quality, its material integrity, and its cultural staying power. Appreciation is an outcome of collecting well, not a strategy for it.
The watches that have appreciated most dramatically in the last twenty years — the Nautilus, the Royal Oak, the Daytona — are watches that collectors with genuine horological knowledge had been arguing were exceptional for decades before the secondary market caught up to that judgment. The appreciation followed the quality; the quality didn't follow the appreciation. This distinction matters enormously for understanding what makes a watch worth collecting, because it means the right question is always "is this a great watch?" rather than "will this watch appreciate?"
Part Two: The Six Criteria of Collecting Value
Serious watch collectors — the people who have been doing this for decades rather than years, who have bought and sold hundreds of pieces and refined their judgment through sustained experience — tend to evaluate watches against a consistent set of criteria, even when they articulate those criteria differently. Here are the six that recur most reliably.
Criterion One: Design Longevity
The most reliable indicator of a watch's collecting value is the quality of its design — and specifically, whether that design has proven itself across time. A watch that looks as right today as it did when it was introduced has passed the most rigorous test any design can face: the test of changing taste.
This is harder to achieve than it sounds. Fashion watches — watches whose appeal is primarily in their currency, in their association with a particular moment or trend — look dated within years of their introduction. Watches with genuine design integrity look correct across decades because their design decisions were made in service of something more durable than current taste.
The criteria for design longevity include:
Proportion. A watch with correct proportions for its intended function looks right regardless of when you examine it. The Datejust's case-to-dial relationship, established in 1945, remains correct in 2026. The Nautilus's case-to-bracelet relationship, established in 1976, remains correct in 2026. These proportions weren't arrived at by accident — they reflect specific design intelligence about how a watch should relate to the wrist, the hand, and the human body.
Material honesty. Watches designed with appropriate materials for their function age better than watches designed with inappropriate ones. A stainless steel sports watch develops a patina that enhances its character. A plated fashion watch reveals its underlying material as the plating wears. Material honesty — using the right material for the purpose, rather than the most economical material disguised as something more — is a design virtue that becomes visible over time.
Detail coherence. A watch whose details reinforce each other — where the bezel's finishing relates to the case's finishing, where the dial's layout relates to the bracelet's link structure, where every element contributes to the overall composition — is a watch with genuine design intelligence. A watch assembled from components that don't speak to each other looks incoherent after the initial impression fades.
The test: Look at the watch and ask whether you think it was designed in the 1950s, the 1970s, the 1990s, or last year. If you can't tell — if the design exists outside of any specific moment — it has the design longevity that serious collecting values.
Criterion Two: Material Quality
Material quality is the dimension of watch value that is most directly verifiable — and the one that most distinguishes genuine quality from the appearance of quality.
Steel grade. 316L stainless steel is the industry standard for quality watch construction — surgical grade, corrosion resistant, and appropriate for daily wear in varied conditions. 904L stainless steel — used by Rolex and in the Daytona collection at Watches By Cody — is a higher-specification alloy with superior corrosion resistance and polish quality. The difference between these grades isn't visible in new condition but becomes apparent over years of wear: 904L holds its finish longer and resists the micro-scratches that dull 316L surfaces over time.
Crystal material. Sapphire crystal — the industry standard for quality watches above a certain price point — rates 9 on the Mohs hardness scale. Only diamond scratches it. Mineral glass, used in budget watches, rates approximately 5.5 on the same scale and scratches visibly within months of daily wear. A scratched crystal undermines even the best dial and hands beneath it. The crystal material is therefore one of the most consequential specifications on any watch, because it determines how the watch looks after six months of wear rather than on the first day.
Bezel materials. Aluminum bezel inserts fade, scratch, and discolor from UV exposure over years of outdoor wear. Ceramic inserts — used on quality dive watches and sports watches — are chemically inert, rated approximately 9 on the Mohs scale, and maintain their color and finish across the entire life of the watch. The bezel material is a quality signal that becomes visible over time rather than at point of purchase.
Movement materials. The quality of a movement's components — the jewels that reduce friction at pivot points, the mainspring's alloy composition, the balance wheel's material — determines how the movement performs over decades of regular wear. Genuine Seiko and Miyota movements use component specifications refined over decades of production. Clone movements use cheaper alternatives that perform adequately initially and degrade faster over time.
The test: Examine the watch after a year of daily wear. Quality materials look essentially the same as they did on day one. Budget materials reveal themselves through scratches, fading, plating wear, and crystal clouding.
Criterion Three: Movement Heritage
The movement inside a watch is its soul — the component that determines whether the watch is a mechanical object with genuine craft behind it or a decorative shell powered by the cheapest available mechanism.
Movement heritage encompasses several related qualities:
Proven reliability. A movement that has been in production for years, in millions of examples, across every climate and condition imaginable, has proven its reliability in a way that a new or obscure caliber cannot claim. The Seiko NH35's track record — over a decade of production, in countless mod and factory builds, worn by enthusiasts worldwide in daily use — is one of the most thoroughly proven in the affordable automatic category.
Serviceability. A movement that can be serviced by qualified watchmakers worldwide — one for which parts are available, for which service procedures are documented, and for which the watchmaking community has accumulated significant experience — can be maintained indefinitely. A movement from an obscure manufacturer with limited distribution may become effectively unrepairable within years of purchase.
Technical specification. Hand-winding capability, hacking seconds, power reserve, jewel count, beat rate — these specifications determine the movement's practical quality and the depth of its mechanical character. A movement with hand-winding and hacking seconds is more functionally complete than one without. A movement with a longer power reserve requires less attention. A higher beat rate typically produces a smoother seconds hand sweep.
Design integrity. Some movements were designed to be seen — the NH72's skeleton architecture, for example — and the quality of their finishing reflects that intended visibility. Others were designed to be hidden but are worth examining in their own right. A movement that has been built with care — jewels precisely set, surfaces finished consistently, components fitted with appropriate tolerances — communicates quality that the wearer experiences even when the movement isn't visible.
The test: Research the movement's production history, service availability, and community reputation before purchasing. A movement with decades of production history and global service availability is a movement worth owning.
Criterion Four: Cultural Significance
A watch doesn't exist in isolation. It exists in a cultural context — connected to a history of who has worn it, what it was designed for, and what it has come to mean beyond its functional purpose.
Cultural significance is not the same as marketing. A watch that has been worn by genuine practitioners of its intended function — pilots who actually flew planes, divers who actually dived, racing drivers who actually raced — carries associations that no amount of advertising can manufacture. The Submariner's connection to the British Special Boat Service. The Daytona's connection to motorsport through Paul Newman. The Santos's connection to Alberto Santos-Dumont's actual flights over Paris in 1906. These are real connections to real events and real people, and they give the watches a cultural weight that purely decorative watches don't carry.
Cultural significance also accumulates through collecting history — through auction records, through the watches that shaped the collecting community's understanding of what quality looks like, through the references that serious collectors have argued about and written about and competed for over decades. The Nautilus's significance as a collecting object is partly the product of the design itself and partly the product of fifty years of collector attention that has refined and amplified that significance.
For Seiko mod watches, cultural significance comes from a different direction: the mod community that has refined the craft over fifteen years, the specific expertise that has accumulated around NH-series movements and their modification potential, and the growing recognition from serious watch collectors that quality mod watches represent a legitimate and interesting category rather than a knockoff segment.
The test: Ask where the watch comes from — not geographically, but culturally. What is it connected to? What does wearing it signal about your relationship to watch culture? A watch with a genuine story is more interesting to collect than one without.
Criterion Five: Wearing Experience
This is the criterion that purely financial collectors most consistently undervalue — and the one that most directly determines whether a watch is actually worth owning rather than simply storing.
The wearing experience encompasses everything that happens when a watch is on the wrist in daily life. The weight and balance of the case. The way the bracelet drapes and adjusts. The clarity of the dial in direct sunlight and in dim restaurant light. The satisfaction of pulling the crown to set the time and feeling the hacking seconds stop precisely. The sweep of the seconds hand across the dial at 21,600 beats per hour. The slight warmth of the automatic winding rotor's movement in the case.
These qualities cannot be evaluated from photographs or specifications. They can only be evaluated by wearing the watch — and they're the qualities that determine whether a watch remains interesting after the initial excitement of acquisition fades.
A watch with a compelling wearing experience rewards daily ownership in a way that a photogenic but uncomfortable or frustrating watch doesn't. The bracelet that fits perfectly. The crown that operates smoothly. The dial that reads clearly without tilting the wrist. The case that sits where it should without migrating toward the hand or the elbow. These details are the difference between a watch you own and a watch you wear.
The test: Put it on. Wear it for a day. Everything that would otherwise require specific evaluation becomes immediately apparent.
Criterion Six: Honest Value
The final criterion — and the one most directly relevant to the case for Seiko mod watches as a serious collecting category — is honest value.
Honest value is not cheapness. A watch can be expensive and represent honest value; a watch can be cheap and represent none. Honest value means that the specifications delivered match the specifications claimed, that the quality of the object justifies its price, and that the buyer receives what they were told they were buying.
In the traditional watch market, honest value is surprisingly rare at accessible price points. The fashion watch category — watches priced between $100 and $500 from fashion brands — consistently delivers mineral glass crystals described as "high-quality crystal," plated cases described as "stainless steel," and quartz movements with no particular quality credentials described as "precision timepieces." The gap between the marketing language and the actual object is wide enough to be considered dishonest in many cases.
The Seiko mod market, when operating with integrity, represents honest value in a way that the fashion watch market rarely does. Sapphire crystal is sapphire crystal. 316L stainless steel is 316L stainless steel. NH35 movements are NH35 movements — documented, proven calibers with known specifications and established track records. When a listing says "tested waterproofing," it means the watch has been tested — not that the design is theoretically water resistant.
Honest value creates the foundation for a collecting practice that doesn't require constant reassessment and revision as the gap between expectation and reality closes. A watch that delivers what it promises remains satisfying; a watch that was purchased on the strength of marketing rather than substance disappoints as the marketing fades.
The test: Compare every specification in the listing to what arrives. Does the crystal resist scratches as sapphire should? Does the movement keep time as the caliber is known to? Does the waterproofing hold? Honest value is verifiable.
Part Three: Why Seiko Mod Watches Are Increasingly Taken Seriously
The traditional watch collecting conversation has been slow to include Seiko mod watches — partly from snobbery, partly from ignorance, and partly from the legitimate reality that early mod builds were inconsistent in quality. But the conversation is changing, and understanding why helps explain what the best mod watches actually represent as collecting objects.
The Specifications Argument
The NH35 automatic movement — the most common caliber in quality Seiko mod builds — is manufactured by TMI, a Seiko subsidiary with decades of movement production experience. It beats at 21,600 vph, features 24 jewels, offers hand-winding and hacking seconds, and has a power reserve of approximately 41 hours. Its track record of reliability across millions of examples in daily use is one of the most thoroughly documented in the affordable automatic category.
The sapphire crystal used in quality Seiko mod builds is the same material — aluminum oxide, grown under controlled conditions to produce a hardness of 9 on the Mohs scale — used in watches costing ten to one hundred times more. There is no "sapphire lite" or "watch-grade sapphire" that is inferior to the same material in expensive Swiss watches. Sapphire crystal is sapphire crystal.
316L stainless steel — used throughout the Watches By Cody collection — is the same steel specification used in established Swiss watch brands including Omega, IWC, and Breitling. 904L stainless steel — used in the Daytona collection — is the same specification Rolex uses and has used exclusively since 1985.
These are not approximations of quality specifications. They are the quality specifications — the same materials and movements used in watches that the collecting community has long regarded as legitimate objects of serious interest.
The Design Language Argument
The design languages that Seiko mod watches draw from — the Datejust, the Day-Date, the Nautilus, the Royal Oak, the Daytona, the Submariner — are the most design-significant references in watch history. They are designs that have been tested by time, refined by the most skilled designers and engineers in the industry, and proven across decades of production to possess the design longevity that is the first criterion of collecting value.
A well-executed Seiko mod that draws faithfully from one of these design languages is not a copy. It is an interpretation — an acknowledgment that the original design is worth engaging with, executed with materials and movements that meet the technical criteria for quality construction. The collecting community's growing appreciation for this distinction — between a cheap knockoff and a quality interpretation — reflects the maturity of the community's understanding of what watch quality actually consists of.
The Craft Argument
Hand assembly is genuinely different from mass production. When a qualified professional assembles a watch — selecting components for compatibility, fitting them with appropriate tolerances, verifying performance before completion — the result is an object with a specific relationship to human craft that factory production doesn't replicate. This isn't nostalgia or marketing. It's the recognition that the care applied to assembly affects the quality of the assembled object in ways that matter over years of daily wear.
Every watch in the Watches By Cody collection is hand-assembled. The dial alignment. The bracelet fit. The bezel seat. The crown operation. These are assessed by a person who knows what right looks like and can verify that it's been achieved — something that production line assembly at volume cannot offer at accessible price points.
The Community Argument
The Seiko mod community has developed, over fifteen years of concentrated collective expertise, a sophisticated understanding of what makes a mod watch good. This understanding is documented in forum discussions, YouTube tutorials, build guides, and the accumulated knowledge of thousands of builders who have made every possible mistake and learned from each one. The community's standards for what constitutes acceptable quality in a mod build have risen significantly over this period.
The result is a category of watch building that has genuine craft knowledge behind it — not just enthusiasm, but specific technical expertise about movement compatibility, component selection, finishing quality, and the specific details that separate a watch worth owning from one that will disappoint its buyer within months.
The Value Argument
A watch that delivers sapphire crystal, genuine automatic movement, 316L or 904L stainless steel, ceramic bezels where appropriate, tested waterproofing, and hand assembly at $279–$349 is delivering specifications that the market prices significantly higher when they come from established brands. The value proposition is not "this is almost as good as a much more expensive watch." It is "this meets the technical criteria for quality construction, at a price that makes daily wear practical rather than anxious."
The collecting community's evolving understanding of this distinction — between brand prestige as a quality proxy and actual material and movement quality as the real criterion — is the foundation of the growing respect for quality Seiko mod watches among serious collectors.
Part Four: Building a Collection That Lasts
The Collecting Mindset
The most durable collecting practice is one rooted in genuine appreciation rather than financial motivation. This doesn't mean ignoring value — it means prioritizing the criteria that produce genuine satisfaction over time over the criteria that produce the appearance of savvy acquisition.
A watch collection built around design longevity, material quality, movement heritage, cultural significance, wearing experience, and honest value is a collection that remains interesting regardless of what the secondary market does. The watches in it are worth owning because they are worth wearing — because they deliver something real every day they're on the wrist.
This collecting mindset produces specific practical habits. It leads to fewer acquisitions, each more considered. It leads to longer holding periods, because the criteria for acquisition are demanding enough that every piece is worth keeping. It leads to a collection with coherent logic — one where each piece contributes something distinct and where the collection as a whole reflects a specific point of view rather than a series of reactive purchases.
Starting a Collection
For someone beginning to build a watch collection — whether their budget is $300 or $3,000 — the practical application of these criteria produces a surprisingly consistent recommendation: start with the watch that has the clearest design integrity, the most proven movement, and the most honest value for your specific budget.
At the Watches By Cody price point, this means starting with a watch whose design draws from a genuinely significant silhouette, whose movement is the NH35 or equivalent proven caliber, and whose specifications are exactly what they claim to be. The Datejust Wimbledon. The GMT Batman. The Santos Silver White Classic. The Nautilus Blue. These are watches that meet the criteria for collecting value at their price point — not because they're cheap, but because they're good.
Start with one watch that you genuinely want to wear every day. The most common collecting mistake is breadth before depth — acquiring many watches before understanding what you actually value in a single watch. One watch worn daily for a year teaches you more about what you value in a timepiece than ten watches rotated weekly.
Buy quality over quantity. Two watches that meet all six criteria are more satisfying to own than five that meet three of them. Every acquisition that doesn't fully meet your criteria dilutes the collecting experience rather than enriching it.
Wear everything you own. A watch that isn't worn isn't a collection — it's storage. The wearing experience is the entire point of owning a mechanical watch, and a collection that exists primarily in a watch box has missed the fundamental reason for its own existence.
The Long View
The best watch collections are built over decades, not months. They reflect the collector's evolving understanding of what they value — beginning with the design languages that attracted them to watches in the first place and deepening into an understanding of the specific criteria that make certain watches worth owning for a lifetime.
This long view produces patience — the willingness to wait for the right acquisition rather than buying the available one. It produces discernment — the ability to distinguish between genuine quality and the appearance of quality. And it produces a collection that, regardless of what any individual piece is worth on the secondary market, represents a coherent and personally meaningful body of objects that have been genuinely worth owning.
That's the standard worth collecting toward. Not the standard of the auction catalogue or the grey market price list, but the standard of an object that you reach for every morning because it genuinely deserves to be on your wrist.
Part Five: The Criteria Applied — Watches By Cody Collection Assessment
Applying the six criteria to the Watches By Cody collection produces a framework for understanding what each watch offers as a collecting object — and why each one is worth serious consideration.
Design Longevity
Every watch in the collection draws from a design with proven longevity. The Datejust's proportions have been correct since 1945. The Nautilus's case shape has been correct since 1976. The Royal Oak's octagonal bezel has been correct since 1972. The Daytona's three-register layout has been correct since 1963. The Santos's square integrated bracelet has been correct since 1904.
These are not trend-driven designs. They are designs that have been tested by time and proven their correctness across it — which is the most reliable indicator available that they will continue to be correct in another decade or two.
Material Quality
316L stainless steel throughout the collection, 904L in the Daytona builds. Sapphire crystal with anti-reflective treatment on every watch. Ceramic bezels on the Submariner, Yacht-Master, GMT Batman, and SKX007 builds. Genuine NH35, NH34, NH38, NH72, Miyota 8285, and VK63 movements specified by caliber rather than described generically.
These are honest specifications — the same materials and movements that quality assessments of any watch category would recognize as appropriate.
Movement Heritage
The NH family — manufactured by TMI since the 1970s — has one of the most thoroughly documented reliability records of any affordable automatic caliber. The Miyota 8285 brings Citizen's decades of movement manufacturing experience to the Day-Date builds. The VK63 hybrid mecha-quartz brings genuine mechanical chronograph feel to the Daytona collection.
None of these is a generic or unknown caliber. Each has a specific production history, a known track record, and a global service network that ensures serviceability for the indefinite future.
Cultural Significance
The design languages the collection draws from — Datejust, Nautilus, Royal Oak, Daytona, GMT-Master, Submariner, Santos — are the most culturally significant in watch history. The Seiko modding community itself carries fifteen years of accumulated expertise and a global reputation for quality that has grown alongside the category's legitimacy.
Wearing Experience
Hand-assembled construction. Tested waterproofing. Sapphire crystal that maintains clarity through years of daily wear. Ceramic bezels that don't fade or scratch. Proven automatic movements that wind themselves and require only periodic servicing to maintain performance. These are the specifications of watches that deliver a satisfying wearing experience across years of daily use rather than months.
Honest Value
Every specification in every listing is what it claims to be. Sapphire crystal, not "crystal glass." 316L or 904L stainless steel, not "high-quality steel alloy." NH35, not "automatic movement." Ceramic bezel, not "durable bezel insert." The gap between marketing and reality — the gap that disappoints most watch buyers in the accessible price category — is closed by specification transparency that lets the buyer verify what they're getting before purchase.
The Bottom Line
What makes a watch worth collecting is not its price, its brand name, or its current secondary market value. It is the combination of design integrity that has proven itself across time, material quality that maintains its character through years of daily wear, movement heritage that guarantees reliable performance and long-term serviceability, cultural significance that connects the watch to something larger than itself, a wearing experience that rewards ownership every day rather than only on the day of acquisition, and an honest value that delivers what it promises.
These criteria apply equally to a $30,000 Swiss dress watch and a $289 Seiko mod Datejust. The question is not what category the watch belongs to but whether the watch meets the criteria. And the growing recognition that quality Seiko mod watches meet more of these criteria than most people expected is what is driving the collecting community's evolving respect for the category.
Collect what you love to wear. Verify that it's built to last. Understand what it draws from and why that heritage matters. And wear it — every day, in every context, for as long as it keeps time.
That is what makes a watch worth collecting.
Every watch at Watches By Cody is built to the criteria that make a watch worth owning — genuine movements, sapphire crystal, quality steel, honest specifications, and hand assembly that puts craft behind every piece. Browse the full collection and find the watch worth collecting.
Choosing the right watch is ultimately about more than just specifications—it’s about finding a piece that fits seamlessly into your daily life. The best watches are the ones you don’t have to think twice about—reliable, versatile, and naturally aligned with your personal style.
At Watches By Cody, our goal is simple: to offer watches that combine timeless design, dependable performance, and real-world wearability—without the unnecessary markup often found in traditional luxury retail. We focus on pieces that look refined, feel right on the wrist, and hold up over time.
If you’re ready to find a watch that fits both your style and your lifestyle, explore our latest collection at Watches By Cody and discover the piece that works for you.
