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The Briston Clubmaster Diver is an automatic 200 m watch with a distinctive cushion-shaped case and an inner timing ring operated by a crown at 2 o’clock. The specific example here is the Clubmaster Diver – Yachting Steel – Navy Blue, reference 18642.PS.D.9W.LVC: a 42 mm polished-steel model with a navy blue and genuine walnut dial, an NH35A movement and a brown vintage leather strap.
What is the Briston Clubmaster Diver?
It is a diver-style watch in Briston’s Clubmaster collection, combining the collection’s cushion-case design with an immersion-time scale inside the dial rather than on a conventional outer bezel. Briston’s featured Yachting Steel reference pairs that arrangement with a polished 316L stainless-steel case and a timber-textured walnut dial. Briston describes itself as a French watch brand founded in 2013; its wider collection also uses Italian cellulose acetate, but that material is not the case material of this steel reference.
The exact product name is Clubmaster Diver – Yachting Steel – Navy Blue, SKU 18642.PS.D.9W.LVC. “Clubmaster Diver” refers to a family of variants, so dimensions, materials and details can differ between listings.
Specifications of the Yachting Steel Navy Blue
| Specification | Official listing |
|---|---|
| Reference | 18642.PS.D.9W.LVC |
| Case | Polished 316L stainless steel; 42 × 42 mm; 14.65 mm thick |
| Dial | Navy blue with genuine walnut; 32.5 mm dial opening |
| Crystal | Curved K1 glass |
| Movement | Automatic Seiko NH35A; bidirectional self-winding |
| Movement details | 24 jewels; 21,600 vibrations per hour (3 Hz); quick date correction; date at 3 o’clock |
| Power reserve | Up to 41 hours, according to Briston |
| Water resistance | 200 m / 20 ATM, as stated by Briston |
| Timing scale | Inner bidirectional ring, operated by the crown at 2 o’clock |
| Hands and markers | White Super-LumiNova C1 inserts |
| Strap | Brown vintage leather strap; interchangeable without tools, according to Briston |
| Strap width and option | 20 mm; Briston’s technical details also describe an original NATO option |
These are manufacturer specifications, not independent instrument-test results. In particular, the 41-hour reserve is an “up to” figure from Briston, not a measured result for every watch.
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How the inner timing ring works
The elapsed-time scale sits inside the crystal around the dial and is adjusted with the crown at 2 o’clock. Briston describes it as bidirectional, so it can be turned in either direction. This differs from the familiar external unidirectional diver bezel: the timing mechanism is integrated into the dial layout rather than placed around the outside edge of the case.
That design is a key part of this Clubmaster Diver’s visual identity, but it is worth distinguishing the watch’s stated water resistance from any guarantee of suitability for a particular dive. Briston lists 200 m / 20 ATM; follow the maker’s care and operating guidance and have the watch’s water resistance checked as appropriate before immersion.
Rank #2
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Clubmaster Diver versus Clubmaster Diver Pro
The Diver Pro is a separate model, not another name for the 42 mm Yachting Steel watch. Briston’s official Black Diver Pro listing gives it a larger case, a conventional external unidirectional bezel, sapphire crystal and a higher stated water-resistance rating.
| Detail | Clubmaster Diver – Yachting Steel Navy Blue | Clubmaster Diver Pro – Black |
|---|---|---|
| Case size | 42 × 42 mm | 44 × 44 mm |
| Thickness | 14.65 mm | 13.75 mm |
| Timing scale | Inner bidirectional ring | Outer unidirectional 60-minute bezel with ceramic insert |
| Crystal | Curved K1 glass | Sapphire crystal |
| Stated water resistance | 200 m / 20 ATM | 300 m / 30 ATM |
| Movement | Automatic NH35A | Automatic NH35 |
Briston also lists Clubmaster Legend Diver Ocean models; that is a separate collection name, not an alternate name for this Clubmaster Diver.
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Strap fit and buying details
Briston specifies a 20 mm strap width for the featured reference and says its straps can be changed without tools. The listing names a brown vintage leather strap and also describes an original NATO option in its technical details. When choosing a replacement, confirm the attachment style and strap length as well as the 20 mm width; width alone does not establish that every strap will fit correctly.
Briston’s product page showed a sale price of €610 when checked on 4 October 2026. That is a time-sensitive listing price, not a guaranteed current price or a price for every Clubmaster Diver variant. The same listing states a two-year international guarantee, with one additional year after authentication and Briston Club registration. Confirm current price, availability, regional terms and warranty conditions with Briston or the seller before purchase.
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For historical context only, Hodinkee’s 2018 hands-on coverage reported prices of $580 for an acetate tortoiseshell Clubmaster Diver and $610 for a steel version at that time. Those article-era prices are not current quotes. The piece discussed steel and acetate options; it should not be read as establishing today’s prices or the specifications of every current variant.
Quick Recap
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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.
