| Reference Ocarat | #43178 |
| Reference | 17142.SA.TS.1.NK |
| Brand | Briston |
| Product Type | Watch |
| Gender | Men |
| Color | Beige Black |
| Material | Synthetic |
| Material Quality | Cellulose acetate |
| Warranty | 2 Years |
| Thickness (in mm) | 11,90 |
| Diameter (in mm) | 42,00 |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Cushion |
| Watch Case Back | Screwed caseback |
| Crystal Shape | Domed |
| Glass Quality | Mineral Crystal |
| Watch Case Types | Date |
| Buttons | 1 Crown 2 Pushers |
| Water Resistance (in ATM) | 10 |
| Movements | Quartz |
| Movement Type | Japanese Movement |
| Movement Brand | Miyota |
| Calibers (Movements) | Miyota OS21 |
| Calendar and Time | Dates Hours Minutes Seconds |
| Chronograph Function | Yes |
| Counters and Durations | 24h 60 min |
| Display Type | Analog (hands) |
| Display Specifications | Luminescent Hands |
| Number of Counters (Additional) | 2 |
| Bracelet Material | Nato |
| Strap Color | Beige |
| Watch Clasp | Tang Buckle |
| Lug Width (in mm) | 20,00 |
| Activities | Swimming / Diving Technical Adventure |
| Collection | Briston Clubmaster Sport Acetate |
The Watch
Briston is renowned for its sporty, adventurous timepieces - and above all for its signature cushion-shaped cases. With its authentic British spirit, this model is guaranteed to turn heads. Powered by a 5-hand Japanese Miyota OS21 quartz movement, it displays hours, minutes, seconds, a date window, and a chronograph with 60-minute and 24-hour counters. The cushion-shaped case remains Briston's iconic hallmark, adding masculinity and ruggedness to your wrist. At 42 mm wide and 11.90 mm thick, it's built for adventure. A slightly domed mineral crystal protects the dial, and the screw-down case back is engraved with the brand's coat of arms - a nod to its British heritage.
The Dial
The Briston's dial is round, set within the brand's signature cushion-shaped case. Black in color, it features a white sub-dial that highlights key elements: the two counters, hands, hour markers, and minute railroad track. The dial opening measures 32.5 mm. It's divided into two sections: the first displays hours, minutes, and seconds via three white hands - the first two made of rhodium for impressive luminescence in the dark. The second section houses the two counters and the date window at 6 o'clock: a 24-hour counter at 3 o'clock and a 60-minute counter at 9 o'clock. A black tachymeter (a measuring instrument used to calculate the speed of a moving object) is also present on a bezel ring inside the dial.
The Movement
This watch houses a Japanese Miyota OS21 quartz movement. This caliber displays hours, minutes, seconds, and the date. The 60-minute counter sits at 9 o'clock, the 24-hour counter at 3 o'clock, and the date window at 6 o'clock. A standard battery lasts approximately 3 years.
The Strap
The strap on this 17142.SA.TS.1.NK is a Sport NATO style in beige nylon canvas. It closes with a silver-toned pin buckle. The strap is 235 mm long with a 20 mm lug width. Designed to handle water contact, this strap is rated to 100 m - meaning it can accompany you during active swimming, though it is not suited for scuba diving.
Water Resistance
With 100-meter water resistance (10 ATM), this boldly styled timepiece is ready for anything wet. From puddles to the pool, it handles showers, baths, and active swimming without a complaint. That said, our watchmaking experts want to be clear: this watch is not designed for scuba diving - freediving or tank - or high-pressure washers. Rule of thumb: showers, baths, and swimming only - and never operate the crown or pushers while submerged.
Want to make this watch one of a kind?
For an extra 10 €, personalize it with up to 12 characters
(see photo examples featuring our 2 font styles).
Please note: in accordance with our general terms and conditions of sale, once personalized, this product cannot be returned or exchanged - however, the manufacturer's warranty of 2 years remains fully in effect.


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Clubmaster Sport Acetate Black Chrono Beige NATO Strap Watch
(Ref. 43178)