Briston Exclusive Clubmaster Diver Automatic Men’s Watch 20644.PBAM.B.NR20.O This WatchNation customised Briston Clubmaster Diver 20644.PBAM.B.NR20.O comes with a 2 year WatchNation warranty and a 1 year international warranty. The Case: Perfectly smooth, polished, powerful and a feast for the eyes, the Briston Clubmaster Diver Automatic 20644.PBAM.B.NR20.O is undeniably slick. Look no further than the sensual curved edges of the cambered square design of the case. This case is embellished by the matte black acetate design, that epitomises the watches understated appeal. Not only is the cellulose acetate alluring, it is also a natural, anti-allergic substance. A PVD coating has been applied to the black case making it almost impossible to scratch, protecting both the finish and the acetate underneath. However, it is the ceramic external bezel that bestows this model with its classic diver looks. It has a knurled outer edge which allows the wearer to easily rotate it when under water. The deployment of 3.3mm thick domed mineral glass also bestows this timepiece with an authentic vintage-feeling look, which supplements the watch’s timeless demeanour. This level of thickness is complementary to the watch’s 300 metres water resistance. The knurled black crown, positioned at 4 o’clock, is a tactile feature that exhibits Briston’s multifaceted approach to providing the wearer with a watch that does not just look good, but feels good too. The Dial: Legibility is the driving force behind this matte black dial that takes centre stage of the watch. The addition of a matte black and orange “arrow-shaped” hands stand out against the black background of the dial. The handset also features a Superluminova insert, which allows for nocturnal legibility. A minute track runs around the outer edge of the dial, forming a rehaut that provides depth to the dial. A date window occupies the 4 o’clock mark, this allows neatly positioned addition to the dial bolsters the watch’s legibility. And lastly, the Briston logo sits proudly beneath the 12 o’clock mark. The Strap: Our experts at WatchNation have changed the look of this Briston watch with this interchangeable orange rubber strap. Made with a soft touch treatment, this strap will be perfect for your wrist with its special system of notch in the central part of the silicone rubber strap. The unique strap can easily be changed within seconds without using an tools or having to remove the watches spring bars. It will fit perfectly to your Clubmaster Classic, Sport or Diver watch to swim all summer long. In terms of specification, the strap measures a width of 20mm and has a maximum length of 24.5cm. It can then be fastened using a silver stainless steel buckle according to your comfort. This also comes with the original black and orange NATO strap providing you with multiple looks to fit your style. The Functions: Automatic NH35A movement powers this timepiece. It is a Japanese made movement, which is used in Seiko watches. It offers an accuracy of +/-20 seconds/day and it has a power reserve of 41 hours. Also it features bi-directional hand winding and a hacking feature, which will allow you to easily and accurately set the time. Finally, this model has a water resistance of 300 metres, making it suitable for diving. If you have any questions please  click here Click here to join our  facebook  and  Instagram !