Its black ceramic unidirectional rotating bezel contains a legible 60-minute dive scale upon its surface and the watch properties Rolex’s in-house made Calibre 3230 inside its sturdy casing. To finish, a matching 904L chrome steel Oyster bracelet is made to protected firmly to your wrist with the manufacturer’s patented Glidelock https://www.watchesworld.com/top-10-dive-watches/