Optimum Time OS Series 15 Sailing Watch Blue

This blue OS15 is slightly smaller with its medium-sized 29mm display compared to the larger Optimum Time models, but still has all the functionalities that a good sailing watch needs. The OS15 features a soft silicone wristband and includes a synchronisation function.

• Plastic casing
• Sailing functions with sound signal
• 5, 4, 1, 0 start sequence
• Countdown
• Synchronisation
• Soft silicone wristband
• 12-24 hour time display
• 29mm display with 12.5mm digits
• Shock resistant
• Water resistant up to 5 ATM
• Easy-to-operate buttons
• Backlight function
• Sound on/off option

The countdown can be set to restart from 5:00 at the starting signal. It is also possible to let the watch count up after the starting signal.