Thanks guys for the reassurances on the sailing watches. I was really worried about the website reviews, but now that I know that they are misleading, I'm going to go with the Ronstan Sailing. It's light, portable, and I don't need to ask the skipper if I can mount it somewhere on his boat.
I also saw a vid about how the sync button works. That really is an impressive feature.
I'll definitely check out the talking kitchen timer for my boat at a later date.