Optimum OS series 3 startwatch – Yellow

Optimum OS series 3 startwatch – Yellow

 104,00 incl. VAT ( 85,95 ex. 21% VAT)

  • Large 65mm overall ABS case. Shock Resistant Construction. Water Resistant to 5 ATM.
  • 38mm x 20mm display size. Single row display. Massive 16mm digit height. Adjustable viewing angle.
  • strap
  • OS315
  • 5,4,1,0 ISAF start sequence pre-programmed with audible warning signals (can be silenced if preferred).
  • Countdown repeat option or Countdown and Up to show elapsed time for handicap races.

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OPTIMUM Regatta watch OS SERIES 3

The original Optimum Time concept and still the most popular sailing watch in the world by far. If you want a very large display with the perfect functions for sailing in a big easily visible watch, start by looking at the OS3. This timer can be strapped to the mast, strapped to the boom, worn on the wrist, over a wetsuit or clothing and can be rotated for the best viewing angle.


  • 5, 4, 1, 0 sequence or 5 / 3 / 1 min programs with audible alarm
  • Countdown and repeat or countdown and up
  • SYNC button for instant synchronisation if a gun is missed
  • 5 ATM water resistance with HydroLock™ dual seal technology
  • Elasticated strap means the watch can be worn on the wrist, over clothing or a wetsuit or even strapped to the mast or boom
  • Face can be rotated 360° in the clip for the perfect viewing angle


  • Tough ABS plastic cased watch
  • Black outer retaining clip (can be deck mounted)
  • Strong and long elastic strap with easy-adjust buckle
  • 1 row LCD display
  • Time of day