The usual technique is to start the stopwatch at some known time prior to
taking the sight (say, on the hour), then stop it at the time of the sight.

Most navigational watches include the features you need, but at a price.
http://www.sailgb.com/p/suunto_x9/
--

"Fred Finisterre" wrote in message
...
Hi,

Are there any watches where you can freeze the time (the actual time, not
the time on a stopwatch) until you've had a chance to to log it and
calculate your position - and then un-pause the time so the watch returns
to the now current time?

Cheers,

Fred.