The RW3 Digital Sailing Watch is most suitable for sailing as it has a prestart countdown option with time of day and stopwatch on the same display. As quoted by a user:
"The time storage and prestart combo would suit me for the sailing race series I sometimes crew in. Prestart fits with the "5 minute warning" etc start sequence and we are asked to submit race start and finish times (time of day) to the results people. The race may be scheduled to start at 11:00:00 but in reality may go at, say, 11:03:15 so can't just rely on the scheduled time.
The SW3 Digital Sailing watch is ideal as it has a large display with stopwatch and countdown timer and is waterproof to 50m
Stopwatch, countdown, time of day,
Count down/up timer, Count up (stopwatch), Time of day
Sailing Bought as a birthday present and only just got round to using it. I''ve used it three times now during sailing and am highly satisfied.Countdown feature very good with loud sound signal. Particularly like the dial, easy to read in all lights.
Good for open water swimming / snorkelling. May be ok for surfing too but still to try out. Large digits are useful when I''m not wearing glasses. Would be useful in swimming pool too, but may get snagged in lane ropes because of size.