Optimum Time Jumbo Sailing Watch

£ 65.95 £ 59.95


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 jumbo 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.


  • Tough, shock resistant 65mm diameter plastic ABS case
  • Black outer housing for deck or bulkhead mounting
  • 38mm x 20mm display size
  • Massive 16mm digit height
  • Single row LCD display
  • Adjustable Viewing Angle
  • Boom/Mast Mount Bracket Supplied
  • Strong, long elasticated strap for wrist or over sleeve wearing with easily adjustable buckle
  • Water Resistant to 5 ATM with Hydrolock dual-seal technology
  • Shock Resistant Construction
  • Normal Timekeeping Mode (12 or 24 Hour)
  • Countdown repeat option or Countdown and Up to show elapsed time for handicap races
  • 5,4,1,0 ISAF start sequence pre-programmed with audible warning signals (can be silenced if preferred)
  • 5 minute, 3 minute and multiples of 1 minute programs as well
  • “Sync Button” for instant synchronisation if a gun is missed
  • Count up from zero
Part Number
Port Solent