The Omega Seamaster 300 is the watch that started it all — a faithful reinterpretation of the 1957 CK2913 diver that gave Omega its professional dive credentials, now powered by the Co-Axial Master Chronometer Calibre 8912 and priced from $8,000 at authorised dealers.
Prices and specifications as at October 2026. Always verify with authorised dealers before purchasing.
TL;DR — Omega Seamaster 300 in Brief
What it is: A 41 mm vintage-inspired diver based on Omega’s 1957 CK2913, reissued in current form in 2014 and updated in 2021 with the Calibre 8912 Master Chronometer movement. Key specs: 300 m water resistance, 60-hour power reserve, 15,000-gauss anti-magnetic, METAS-certified. Price: $8,000 retail for the steel bracelet variants; from around $6,399 on the grey market. Buy it if: You want a vintage-flavoured tool diver with in-house movements and no date window. Skip it if: You want a modern date complication, a sub-$5,000 price, or the iconic Bond 300M look.
In This Guide
What Is the Omega Seamaster 300?
The Omega Seamaster 300 occupies a peculiar and enviable position in the watchmaking world. It is simultaneously a modern tool watch and a piece of living horological history — a watch whose bones trace directly to the CK2913, the stout 38 mm diver Omega introduced in 1957 at the dawn of the professional dive-watch era.
The current generation, reissued in 2014 for the brand’s first professional diver, received its most significant update in 2021 when Omega replaced the earlier Calibre 8400 with the newer Calibre 8912. That change brought a longer power reserve and refined specifications, and it is the version you will find at authorised dealers today. You can read the full arc of the Seamaster family in our Omega Seamaster history guide.
The first thing every prospective buyer must understand: the Seamaster 300 is not the same watch as the Seamaster Diver 300M. These are distinct models that buyers frequently confuse — the 300 is the retro-inspired piece without a date; the 300M is the modern, heavily branded Bond watch with a helium escape valve. We address this directly in the comparison section below.
Design, Dial and Case
The case measures 41 mm in diameter and 13.9 mm thick with a 21 mm lug width — dimensions that feel substantial without tipping into territory that reads as sporty-loud on the wrist. The profile is rounded and polished in all the right places, with brushed flanks that evoke professional utility rather than jewellery.
The dial design is where the watch earns its vintage credentials. Both the black and blue variants carry applied indices filled with white Super-LumiNova rather than the stick indices or Arabic numerals common on modern tool watches. The handset uses a broad sword-style hour hand over a tapered minute hand — an immediate visual cue that this dial is reaching backward to the 1950s. There is no date window, a decision that polarises buyers but keeps the dial composition pure. The lollipop seconds hand — a nod to the CK2913’s distinctive seconds — is one of those small details that makes Seamaster 300 owners feel connected to something larger than the watch itself.
The bezel is an anodised aluminium unidirectional rotating ring, again faithful to the era rather than the ceramic bezels that dominate the modern dive watch space. Aluminium fades over time and can scratch, which purists will argue is the point: it patinas. The caseback features sapphire crystal for movement viewing, paired with domed sapphire on the front, giving a slightly convex profile that photographs beautifully.
Movement and Specifications
The Calibre 8912 is a Co-Axial escapement movement certified to the METAS Master Chronometer standard. That certification means it has been tested in eight different conditions — including in a magnetic field of 15,000 gauss — and guaranteed accurate to 0/+5 seconds per day on the wrist. For context, standard COSC chronometer certification only tests at 4 gauss; the Master Chronometer standard is meaningfully more rigorous. You can compare the full Co-Axial calibre family in our calibre 8800 vs 8900 vs 3861 guide.
| Specification | Detail |
|---|---|
| Movement | Omega Calibre 8912, Co-Axial Master Chronometer |
| Accuracy | 0 to +5 seconds per day (METAS certified) |
| Power Reserve | 60 hours |
| Anti-Magnetic | 15,000 gauss |
| Case Diameter | 41 mm |
| Case Thickness | 13.9 mm |
| Lug Width | 21 mm |
| Water Resistance | 300 m (30 bar) |
| Crystal | Domed sapphire (front and back) |
| Bezel | Anodised aluminium, unidirectional rotating |
The 60-hour power reserve is generous enough for weekend wear without winding on a Monday — a practical advantage that often goes unmentioned in romantic discussions about retro styling. Omega uses a free-sprung balance with a silicon balance spring, both contributing to magnetic resistance without requiring a Faraday cage case construction.
On the Wrist
The 41 mm by 13.9 mm case wears closer to 40 mm than the measurement suggests because the lugs curve down rather than jutting straight out. Buyers with wrists in the 16–18 cm range will find it comfortable across a full day. Those with smaller wrists may want to try before they buy — the 13.9 mm thickness makes itself known under a dress shirt cuff.
On the bracelet, the watch sits confidently without sliding. The steel bracelet uses a modern folded clasp with push-button release and micro-adjustment, which is functional rather than luxurious. Some owners swap the bracelet for a 21 mm NATO strap to soften the look and save the bracelet for dressed-up occasions — the 21 mm lug width has decent aftermarket support, though it is slightly less common than 20 mm.
The domed sapphire crystal catches light in a way that flat crystals simply do not, creating highlights that give the watch a depth otherwise missing at this size. The broad indices and hands charge quickly under artificial light and remain legible for hours in low-visibility conditions — a requirement for any legitimate dive watch.
The References: Which Seamaster 300 to Buy
Omega produces the Seamaster 300 in a tighter range of configurations than many expect. Here is every current reference worth knowing.
234.30.41.21.01.001 — Black Dial, Steel Bracelet
Retail: approximately $8,000. The black-dialled reference is considered the more utilitarian of the two primary steel variants, and it commands slightly stronger grey market interest from collectors who want a pure tool watch aesthetic. Grey market price ranges around $6,700 in 2026.
234.30.41.21.03.001 — Blue Dial, Steel Bracelet
Retail: approximately $8,000. The blue dial is the more photogenic option and tends to be what most people picture when they think Seamaster 300. The blue-black combination on steel is a versatile look that works dressed up or on a beach. Grey market sits around $6,400.
234.30.41.21.03.002 — Summer Blue, Ceramic Bezel
Introduced in 2023, this reference swaps the anodised aluminium bezel ring for a ceramic one, making it more scratch-resistant at the cost of some vintage authenticity. The dial is a lighter, almost aquamarine blue that photographs very differently from the standard blue. Retail is slightly above $8,000.
234.32.41.21.03.001 — Blue Dial, Leather Strap
The leather strap variant is often overlooked but represents arguably the best value entry point for buying new, as authorised dealers occasionally move these faster with smaller premiums. Retail is around $6,800 — roughly $1,200 less than the bracelet version for the same movement.
234.92.41.21.10.001 — Bronze Case, Brown Dial
For the buyer who wants something genuinely unusual, the bronze Seamaster 300 uses a bronze alloy case that will develop a unique patina over time. The brown dial echoes the warm tones of aged tropical dials. Retail is considerably higher — around $14,000-15,000 depending on region — and grey market prices around $12,300 reflect the premium materials and lower production volumes.
234.10.39.20.01.001 — 1957 Trilogy 39mm (Limited)
This 39 mm limited edition reproduces the dimensions of the original CK2913 more faithfully, using the manual-wind Calibre 8806. Only 3,557 pieces were made, named for the year of the original watch. Current retail where available is around $7,200, but availability is thin. This is for the purist who wants the authentic small-case experience.
Seamaster 300 vs Seamaster 300M: What Is the Difference?
This is the most common source of confusion in the Omega Seamaster family, and the answer matters because these are genuinely different watches for different buyers. Our full Seamaster 300M buying guide covers the Bond variant in depth; here is the short version.
The Seamaster 300 is the vintage-inspired model: 41 mm, no date, aluminium bezel, retro handset, sapphire caseback. The Seamaster Diver 300M is the modern-design model: available in 42 mm, date at 3 o’clock, wave-pattern dial, ceramic bezel, helium escape valve, screw-down caseback. The 300M also comes in more exotic materials and has a larger range of case sizes including 43.5 mm. The 300M is the watch Daniel Craig wore in several Bond films; the 300 is a museum piece that happens to also be a serious diver.
Both use Master Chronometer movements and offer 300 m water resistance. If you want a date window and a more contemporary sports-watch profile, choose the 300M. If you want the clean no-date dial, the aluminium bezel, and the explicit vintage connection to 1957, the Seamaster 300 is your watch. You can also see how the 300M compares to Tudor in our Tudor Pelagos 39 vs Seamaster Diver 300M comparison.
Alternatives to Consider
| Watch | Case | Movement | WR | Approx. Price |
|---|---|---|---|---|
| Tudor Black Bay 54 | 37 mm steel | MT5400 (COSC) | 200 m | ~$3,625 |
| Longines Legend Diver | 42 mm steel | L837 automatic | 300 m | ~$2,800 |
| Blancpain Fifty Fathoms | 45 mm steel | Cal. 1315 | 300 m | ~$18,500 |
| IWC Aquatimer Automatic | 42 mm steel | Cal. 32110 | 300 m | ~$7,400 |
The Tudor Black Bay 54 is the most commonly cited alternative for buyers who want vintage dive-watch DNA at a lower price. At 37 mm it is smaller than the Seamaster 300, and its manufacture movement lacks the METAS certification, but Tudor’s ownership by Rolex’s parent company gives it strong brand credibility and secondary market liquidity. Budget-conscious buyers often choose it.
The Longines Legend Diver is worth considering if the heritage angle matters most and budget is tight. At around $2,800, it reproduces many of the visual cues of 1960s professional divers at a fraction of the price. The movement is not in-house and accuracy is standard (not Master Chronometer), but the case quality and finishing are strong for the price.
The Blancpain Fifty Fathoms is the legitimate upstream alternative — the watch that, alongside the Seamaster 300’s ancestor, defined the professional dive watch category in 1953. At $18,500+ it occupies a different market tier, but collectors who come from the Seamaster 300 often end up there. See our broader Omega Seamaster buying guide for context on the full Omega range.
Price, Availability and Resale Value
The Seamaster 300 is not a hard watch to find at an authorised dealer, but it is not sitting in display cases unsold. Omega’s authorised dealer network in most major markets carries at least the two primary steel variants. Waiting lists — where they exist — are measured in days or weeks, not years.
Grey market prices in late 2026 sit at roughly 15–20 percent below retail for the steel bracelet variants, making this one of the more buyer-friendly Omega models from a discount perspective. The bronze reference commands a smaller discount due to lower production volumes.
Pre-owned prices on the secondary market are solid. Steel Seamaster 300 references in excellent condition sell in the $4,700–$6,100 range depending on box, papers, and service history. The 1957 Trilogy limited edition holds value better than the standard references and often trades above retail in good condition. For a detailed look at long-term value retention across the brand, read our do Omega watches hold their value analysis.
Resale depreciation is moderate: expect to lose roughly 15–25 percent buying new from an AD and selling within the first two years, broadly in line with luxury watch market averages. Buyers who purchase grey market near the bottom of the discount range face less downside risk.
Frequently Asked Questions
No. The Seamaster 300 is the vintage-inspired no-date diver with an aluminium bezel, based on the 1957 CK2913. The Seamaster Diver 300M is the contemporary Bond model with a date window, ceramic bezel, and wave-pattern dial. Both offer 300 m water resistance and Master Chronometer movements, but they are visually and functionally distinct.
For most buyers, the blue dial steel bracelet (234.30.41.21.03.001) is the most versatile starting point — it photographs well, transitions between casual and smart-casual wear, and holds secondary market value solidly. If you prefer a quieter look, the black dial (234.30.41.21.01.001) is equally recommended.
Current production Seamaster 300 models use the Omega Calibre 8912, a Co-Axial Master Chronometer movement with 60-hour power reserve, 15,000-gauss anti-magnetic resistance, and METAS certification guaranteeing accuracy of 0 to +5 seconds per day on the wrist. The limited 1957 Trilogy edition uses the manual-wind Calibre 8806.
The Tudor Black Bay 54 offers vintage diver aesthetics at around $3,625 — roughly half the Seamaster 300’s price. The Seamaster 300 counters with a certified Master Chronometer movement, longer power reserve, and Omega’s prestige. The Tudor is smaller at 37 mm. If budget is a primary constraint, the Black Bay 54 is a credible choice; if you want the best in-house movement and brand premium, the Seamaster 300 justifies the difference.
In late 2026, grey market prices for steel bracelet Seamaster 300 references sit at roughly $6,400–$6,700 depending on dial colour and dealer. The bronze reference sells around $12,300 grey market. These prices represent approximately 15–20 percent below the $8,000 authorised dealer retail price for steel models.
The Seamaster 300 is not a speculative investment, but it is a stable one. Pre-owned prices hold in the $4,700–$6,100 range for steel references in good condition, suggesting moderate depreciation for buyers who purchased at retail. The 1957 Trilogy limited edition has historically held value above retail. Buying grey market or pre-owned reduces downside risk significantly.
No. The Seamaster 300 does not include a helium escape valve. That feature appears on the Seamaster Diver 300M and other professional saturation-diving watches. The Seamaster 300 is rated to 300 m — more than sufficient for recreational and sport diving — without requiring a HEV for normal use.
Final Verdict
The Omega Seamaster 300 makes a coherent and genuinely attractive case for itself at $8,000. The Calibre 8912 is one of the most technologically capable movements in its price class. The 15,000-gauss magnetic resistance, 60-hour power reserve, and METAS certification are specifications that luxury sport watches costing considerably more do not always match. The design walks a narrow line between vintage sentiment and wearable practicality, and it mostly succeeds — the no-date dial, aluminium bezel, and domed crystal are all defensible choices that create a watch with genuine character rather than one assembled from safety decisions.
The compromises are real: $8,000 buys you an aluminium bezel that will eventually fade and scratch, a case thickness that is not slim by modern standards, and brand positioning that sits between Tudor (cheaper, nearly as credible) and Blancpain (dearer, arguably the original). The grey market discount softens the entry point considerably — at $6,400–$6,700, the Seamaster 300 competes differently.
For the buyer who has considered the field, understands what the Seamaster 300 is and is not, and wants a vintage-inspired diver with an in-house movement that will outlast them — this is one of the most satisfying watches available at the price. Start with the blue dial on a bracelet, and do not overthink it.
