Optimum OS310 Big White Sailing Watch
- Large 65mm overall ABS case
- 38mm x 20mm display size
- Massive 16mm digit height
- Single row display
- Adjustable Viewing Angle
- Boom/Mast Mount Bracket Supplied
- Elasticated Strap for Wrist or over sleeve wearing
- Water Resistant to 5 ATM
- Shock Resistant Construction
- Normal Timekeeping Mode (12 or 24 Hour)
Specialist Sailing Timer Functions:
- Countdown repeat option or
- Countdown and Up to show elapsed time for handicap races
- 5,4,1,0 ISAF start sequence pre-programmed with audible warning signals (can be silenced if preferred)
- 5 minute, 3 minute and multiples of 1 minute programs as well
- Sync Button for instant synchronisation if a gun is missed
