Clubmaster Diver Pro GMT 24844.SA.T.15.NNB Watch

The Watch

Briston is a French watchmaking brand born from a deeply British spirit and inspiration. It crafts timepieces that stand out for their signature sport-chic style with a vintage edge, made from original materials. True to its singular DNA, Briston presents - in an exclusive limited edition of 100 pieces - the Clubmaster Diver Pro GMT 24844.SA.T.15.NNB. This is an innovative watch with a look that's at once contemporary, chic, and laid-back. It comes with a cushion case crafted from Italian cellulose acetate in a tortoiseshell pattern, finished with a mirror-polish. Eye-catching and bold, it measures 44 × 44 mm with a thickness of 13.75 mm and a dial opening of 33 mm. It's protected by an ultra-resistant sapphire crystal measuring 3.30 mm thick. Surrounding it, a notched, bidirectional bezel is enhanced by a sapphire crystal insert for a high-quality glossy look, featuring a day/night indicator in natural Super-LumiNova® and a GMT hour scale. The case stands out with a screw-down crown positioned at 4 o'clock and partially protected. Crafted in 316L stainless steel, it features knurling for easy handling when setting the hands and date. The screw-down caseback, also in 316L stainless steel, delivers a water resistance of 30 ATM.

The Dial

The dial is clean, elegantly organized, and remarkably easy to read. Its deep navy blue color evokes the ocean depths, while a glossy finish enhances its sophistication and adds visual depth. The outer edge features a blue inner bezel with a minute track combined with a seconds scale in Arabic numerals, plus a small triangle at 12 o'clock - all treated with natural Super-LumiNova. The dial perimeter carries a second, more classic minute track alongside oversized indices: batons at 6 and 9 o'clock, an inverted triangle at 12, and round dots for the remaining hours - except 3 o'clock, which is replaced by the date window. All markers are coated with Super-LumiNova® for outstanding low-light legibility. The hour and minute hands are crafted in polished stainless steel with inserts of natural Super-LumiNova®. They're paired with a seconds hand and a 4th GMT hour hand, both lacquered yellow with luminescent tips. The whole design is finished with the brand signature at 12 o'clock and the collection name and water resistance rating at 6 o'clock.

The Movement

This model is powered by a Swiss automatic movement SW330-1 manufactured by Sellita. High-performing and built to last, it features a bidirectional rotor with ball bearings and a frequency of 28,800 vibrations per hour. This 11 ½''' caliber boasts 25 jewels and delivers a 42-hour power reserve with quick date correction and a shock-absorbing balance wheel system. It offers reliable analog 3-hand display, a date complication, and a GMT function.

The Strap

This watch is paired with an elegant navy blue NATO strap with a sport-chic edge, crafted in nylon. Flexible and interchangeable, it's water-resistant with a lug width of 20 mm and a length of 280 mm. Comfortable to wear, it fastens with a pin buckle in 316L stainless steel.

This model also comes with a second strap for a whole new look. It's crafted in navy blue silicone with a soft-touch treatment. It shares the same lug width and buckle as the first strap. Comfortable to wear, it measures 245 mm in length.

Water Resistance

This model offers water resistance of 30 atmospheres - that's 300 meters deep. Whether you're splashing around in the pool with the kids or gearing up for serious scuba diving, this watch is built for it all. The deep sea doesn't stand a chance. The Ocarat team wishes you a fantastic underwater adventure - just one last tip: don't operate the pushers or crown during a dive!