Features
* Date
The day of the month, displayed in a window on a watch dial

typically at the 3 o'clock or 6 o'clock position.
* Chronograph
Complicated watch with a function for measuring short time

periods in addition to its function for permanently

displaying hours, minutes and seconds.
* Chronometer
Label given to a watch which has undergone precision tests

and received a certificate from an official body (COSC).
* Small secondsSmall secondsA hand on a sub-dial which

tracks seconds; typically it completes a full rotation in

one minute.
* Helium escape valve
Decompression system which allows helium to escape from

inside the watch when the watch is worn for professional use

in pressure chambers. (Long-term underwater work, crude oil

exploration, etc.)
* Screw-in crown
Self-locking crown, screwed into the tube of the case, used

for highly water resistant divers' watches.
* Unidirectional rotating bezel
A bezel which turns in only one direction. Particularly

useful for divers who cannot accidentally rotate it in the

wrong direction, which could cause them to miscalculate

their dive times. A rotating bezel makes it easy to measure

elapsed time.

technical data
* Crystal
Domed anti-reflective, scratch-resistant sapphire crystal
* Case
Steel
* Dial
Blue
*Water resistance
300 m (1000 feet)
* Size
Gents
Diameter: 41.5 mm
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movement
Caliber: Omega 1164
Self-winding chronograph, chronometer movement with rhodium-plated finish
Power reserve:44 hours