The original and iconic ‘big yellow timer’ remains the benchmark for competitive sailors worldwide and this is the choice of Olympians.
Everyday sailors to world-class athletes rely on this watch and are never let down. Chosen by athletes at the very highest level, including Saskia Tidey, Mickey Beckett and many more. When every second counts, precision matters.
Built for performance, the OS3 delivers a robust, easy-to-read display combined with exceptional sailing functionality. It can be securely strapped to a mast or worn comfortably over your sailing kit.
The rotating face ensures the perfect viewing angle, while oversized buttons allow for confident operation, even in the final moments before the start. Featuring the essential sync button, the OS3 aligns your countdown with the official race control timer, so you’re perfectly timed for the gun. Reliable, race-proven, and trusted on the world stage.
Unsure which Optimum Time watch is best for you, compare Optimum Time sailing models here.
Features:
- 65mm diameter ABS case
- 38mm x 20mm display
- Single row display with 16mm digit height
- Adjustable viewing angle
- Boom/mast mount bracket supplied
- Adjustable elasticated strap
- Water-resistant to 5 ATM
- Shock Resistant Construction
- Electro-luminescent backlight feature
Timer Functions:
- Normal timekeeping mode (12 or 24 Hours)
- Pre-programmed 5,4,1,0 ISAF start sequences or 5 min, 3 min, and 1 min programs with audible alarms (can be silenced if preferred)
- Countdown & repeat or countdown and up
- Sync button for instant synchronisation if a gun is missed
- Count-up from zero
Year: 2026Model: OS315Colour: Yellow
