Dive bezel operation has gotten complicated with all the terminology flying around. Here’s how these rotating bezels actually work.
Elapsed Time Tracking
Rotating bezels measure dive duration. Turn counterclockwise only for safety. Align marker with minute hand at dive start. Read elapsed time from bezel markings.

Safety Design
That’s what makes unidirectional bezels endearing to us dive watch enthusiasts—safety first. Only shows time as longer, never shorter. Protects divers from overestimating remaining air.
Other Uses
Track parking meter time. Time cooking or exercises. Measure any elapsed duration easily. Count down using pip marker.

Bezel Types
Aluminum bezels scratch but can be replaced. Ceramic resists scratches permanently. Sapphire bezels offer premium durability.