Optimum Time OS315

The "Big Yellow" OS315 has been a favorite of serious sailors for years. Ben Ainslie won his 3rd gold medal at the 2008 Olympics in Qingdao, China with an OS315 secured in the cockpit of his Finn.That's pretty serious!

The OS 315 is easy to set, easy to use, easy to see, and easy to hear.

• Large 65mm overall ABS case
• 38mm x 20mm display size
• Massive 16mm digit height
• Single row display
• Adjustable Viewing Angle
• Boom/Mast Mount Bracket
• Elastic Strap for wrist or over sleeve wearing
• Water Resistant to 5 ATM
• Shock Resistant Construction
• 12 or 24 Hour Timekeeping Mode
• Countdown repeat option for one design racing
  
• 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
• Weight: 2.3oz (65g)