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Optimum Time OS Series 3 Sailing Watch, Yellow

Note: Some prices may reflect updates due to international tariffs. Learn the latest about tariffs
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Tariff Updates

We are observing how the tariffs are behaving. Lots of our products are imported from Europe and some of the manufacturers are not providing heads up about price increases. We will do everything in our power to hold the best prices, but please consider that in these uncertain times we may be forced to increase the prices without previous notification.

We really appreciate your understanding and look forward to working with you.

What does this mean for you?

  • Some imported products may show a higher price than usual.
  • Prices may change as shipping rates adjust globally.
  • We are committed to providing the best possible pricing and transparency at all times.

How we’re handling it:

  • We only adjust prices when absolutely necessary.
  • We continuously monitor shipping rates and update pricing accordingly.
  • We’ll clearly notify you if a product is affected by tariffs.

Questions? Feel free to contact our team for any clarification or assistance.

Updated: April 2025

$99.95
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SKU:
OTOS315
Weight:
2.00 LBS
Shipping:
Calculated at Checkout.
Optimum Time OS Series 3 Sailing Watch, Yellow

Optimum Time OS Series 3 Sailing Watch

The original and iconic big yellow timer is still the top choice for competitors around the world today. If you need a robust timer, with an easy-to-read display, and exceptional sailing functionality, then this is the one for you. The OS3 can be strapped to a mast or comfortably worn over your sailing kit. The face rotates to give you the best viewing angle and the big buttons mean you won´t be left fumbling when the race is about to begin. The OS3 also features our essential sync button, which synchronises your countdown to the race control timer, ensuring you won´t miss the gun.

FEATURES

• 65mm diameter ABS case

• 38mm x 20mm display

• 26mm diameter display size

• 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