Back

Monitor diving time

The Submariner’s unidirectional rotatable bezel is key to the functionality of the watch. Its engraved 60-minute graduation allows divers to monitor their time underwater. Manufactured by Rolex from a hard, corrosion-resistant ceramic, the Cerachrom bezel insert is virtually scratchproof and its colour is unaffected by ultraviolet rays, seawater or water that is chlorinated. In addition, thanks to its chemical composition, the high-tech ceramic is inert and cannot corrode.