Optimum Time OS434

Fashionably oversized ABS case with soft touch PU strap & stainless buckle. This watch is built for racing, and it shows.

• 5,4,1.0 ISAF start sequence pre-programed wit audible warning signals
• Bright electro-luminescence backlight feature for nightime operation
• 37mm round display size
• Shock & water resistant to 5 ATM
• Normal 12 or 24 hour timekeeping
• Calender & Alarm
• Countdown repeat option for one design racing
• Countdown and up to show elapsed time for handicap races
• 5 minute, 3 minute and multiples of 1 minute as well
• Sync button for instant synchronization if a gun is missed