Are these the watches that were sold in the late
80's and could interface
with the Mac? I think they used a hypercard stack to download data to the
watch, which I think was pretty much just plain text.
I don't remember what the watch was called, but I think it might have
been made by Seiko. I think they sold for about $100 new... I always
wanted one, but never had the spare cash :-( 
Possibly.  These were made in 1985 and cost around $500, new.  I don't
have Mac software or cables, though.
The interface box doubles as a real-time clock for the Apple II.  It was
made by Applied Engineering.
Tom
Applefritter
www.applefritter.com