The white-dial Omega Seamaster Diver 300M Master Chronometer reviewed here is the steel-bracelet model, reference 210.30.42.20.04.001. It pairs a 42 mm steel case with a white ceramic wave dial, black ceramic bezel, automatic Calibre 8800 and 300-metre water resistance. A rubber-strap version looks similar but has a different reference, 210.32.42.20.04.001; it is not the same configuration.
What is the white-dial Seamaster Diver 300M?
It is a modern, 42 mm stainless-steel automatic diver built around a high-contrast white-and-black design. The dial is polished white ceramic with laser-engraved waves, a red Seamaster wordmark and a red tip on the seconds hand. A black ceramic bezel ring carries a white enamel diving scale. Hours, minutes, seconds and date are displayed beneath a domed, anti-reflective sapphire crystal; the back is also sapphire, showing the movement.
The bracelet reference is 210.30.42.20.04.001. The closely related white-dial rubber-strap model is 210.32.42.20.04.001. The strap and reference are meaningful distinctions when checking a listing, price, warranty or included clasp; do not assume an aftermarket strap will fit without confirming the attachment and end-link compatibility.
Specifications of reference 210.30.42.20.04.001
| Specification | Detail |
|---|---|
| Case and diameter | Stainless steel; 42 mm, as listed by OMEGA/Tourneau product information accessed in 2026. Tourneau |
| Fit dimensions | About 49.4–49.9 mm lug-to-lug and 13.45–13.6 mm thick across the cited measurements; reported values vary slightly by source. Monochrome Watches and The Watch Observer |
| Dial and bezel | Polished white ceramic dial with laser-engraved waves; black ceramic bezel ring with white enamel diving scale. Tourneau |
| Crystal and caseback | Domed sapphire crystal with anti-reflective treatment; sapphire display caseback. Watches of Switzerland Australia |
| Movement | Automatic OMEGA Co-Axial Master Chronometer Calibre 8800; Monochrome describes it as METAS-approved. Monochrome Watches |
| Power reserve | 55 hours, as reported by Monochrome Watches in 2019. Monochrome Watches |
| Water resistance | 30 bar / 300 metres / 1,000 feet, as stated in retailer listings accessed in 2026. Tourneau and Watches of Switzerland Australia |
| Bracelet | Polished-brushed steel; the retailer describes a foldover clasp with comfort setting and diver extension. Watches of Switzerland Australia |
| Functions | Hours, minutes, seconds and date. Monochrome Watches |
How it wears and what reviewers say
The key practical question is fit, not the nominal 42 mm diameter alone. The cited lug-to-lug measurements are approximately 49.4–49.9 mm, and the case is about 13.45–13.6 mm thick. Those dimensions can feel substantial, especially on a smaller wrist; if possible, try it on rather than judging by diameter in isolation. The Watch Observer reviewer also listed the watch’s weight and the move from the prior 41 mm size to 42 mm as drawbacks for some buyers.
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#1 Best Overall
- Model 212.30.44.52.01.001
The white ceramic dial and black bezel are the visual signature. Monochrome reviewer Rebecca Doulton called the pairing “Sporty yet elegant, the white ceramic dial and black bezel is a combination that you won’t grow tired of.” Monochrome Watches, 19 November 2019 The Watch Observer’s 2019 review praised the dial, bracelet, execution, precision and everyday versatility. These are reviewers’ assessments, rather than independent test results reported here.
The Watch Observer describes the lume as bicolour: green on the minute hand and bezel pip, and blue on the hour and seconds hands and dial markers. It also notes the bracelet extension for wearing over a wetsuit. The Watch Observer
Rank #2
- Model 210.30.42.20.04.001
Reasons to consider it
- The ceramic dial and bezel give it a distinctive, crisp contrast while retaining the familiar wave-dial Seamaster look.
- Its 300-metre rating and diver extension suit water-oriented use, while the date and steel bracelet make it practical as an everyday watch.
- The display back exposes Calibre 8800, an appealing detail for owners who like to see the movement.
Trade-offs to weigh
- The 42 mm diameter, nearly 50 mm lug-to-lug reach and reported weight may be too much for some wrists.
- The display back adds visual interest, though The Watch Observer questioned its necessity on a watch designed for water use.
- The steel-bracelet configuration is not interchangeable in identity or price with the rubber-strap reference; check the exact reference on the offer.
Price: what the available figures do and do not tell you
Prices differ by market, configuration and date. The available current observations are third-party retailer displays, not verified official OMEGA list prices. Historical euro figures are useful context, not current quotes.
| Price shown | Market and configuration | Source and qualification |
|---|---|---|
| USD $6,700 | United States; steel-bracelet reference 210.30.42.20.04.001 | Tourneau retailer page observed 2026-10-08; retailer-displayed price, not verified official OMEGA MSRP. Tourneau |
| AUD $10,525 including GST | Australia; steel-bracelet reference 210.30.42.20.04.001 | Watches of Switzerland Australia page observed 2026-10-08. Watches of Switzerland Australia |
| EUR 4,900 | France; steel-bracelet reference | The Watch Observer’s French recommended retail price dated 2 October 2019; historical, not a current quote. The Watch Observer |
| EUR 4,600 | Rubber-strap sibling reference 210.32.42.20.04.001 | Monochrome Watches’ original retail price reported in 2019; historical and for a different configuration. Monochrome Watches |
No official current OMEGA US list price or region-specific inventory status is established by these figures. For a purchase decision, check OMEGA or an authorized dealer in your market at the time of purchase, and confirm the exact reference, stock, warranty, return terms and whether the quoted price includes local taxes.
Rank #3
- Omega Seamaster Automatic Chronometer Black Dial Men's Watch 210.30.42.20.01.001
Bracelet or rubber strap?
The two white-dial versions share the same broad design idea, but the reference number tells you which configuration a listing describes. The bracelet model is 210.30.42.20.04.001; the rubber-strap sibling is 210.32.42.20.04.001. Monochrome’s 2019 figure for the rubber version was EUR 4,600, compared with The Watch Observer’s EUR 4,900 historical French recommended retail price for the bracelet model; those dated prices are not a current, like-for-like market quote.
| Decision point | Steel bracelet: 210.30.42.20.04.001 | Rubber strap: 210.32.42.20.04.001 |
|---|---|---|
| What is established | Polished-brushed steel bracelet; retailer describes foldover clasp with comfort setting and diver extension. | White-dial rubber-strap configuration; Monochrome reported EUR 4,600 original retail price in 2019. |
| Best reason to choose | Choose it if you want the integrated steel-bracelet look and the included bracelet clasp/extension. | Choose it if rubber is your preferred wearing surface and you want the distinct factory configuration. |
| Price evidence | USD $6,700 at Tourneau and AUD $10,525 including GST at Watches of Switzerland Australia, both observed 2026-10-08; retailer displays, not official OMEGA MSRP. | EUR 4,600 reported by Monochrome in 2019 for the rubber reference; historical only. |
| Fit check | Case dimensions are about 42 mm diameter, 49.4–49.9 mm lug-to-lug and 13.45–13.6 mm thick across cited sources. | Do not infer strap fitment or compatibility from the similar appearance; verify exact reference and attachment details with the seller. |
Do not compare a current retailer price in one country directly with a historical euro price for another configuration. Before buying either version, verify what the seller includes and its local warranty and return policy.
Quick Recap
Best Value
- Imported
- Pre-Loved Condition: Very Good; Minor scratches and light wear on case and band, minor dings on band.
- Case Size/Width: 41mm, Watch Height: 13mm, Band Width: 20mm, Wrist circumference: 7.0"
- Band material: Stainless Steel
- Case material: Stainless Steel
Rank #4
- Omega Seamaster Automatic Black Dial Men's Watch 210.32.42.20.01.001
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
