Optimum Time OS Series 12 Sailing Watch Black

The OS12 combines style and substance, perfect for those seeking a sophisticated look without compromising on functionality. The display switches to large 19mm digits in the final minute.

• Colour: black
• Plastic case
• 3-row display (switches to 1 row in final minute)
• Sailing functions with sound signal
• 5, 4, 1, 0 start sequence
• Countdown
• Synchronization
• Soft silicone wristband
• 12-24 hour time display
• 28mm display with 9mm digits
• 19mm digits in the final minute
• Shock-resistant
• Water-resistant up to 5 ATM
• Easy-to-operate buttons
• Rechargeable battery with USB charging cable
• 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 have the watch count up after the starting signal.