You beautiful bastard! I had one of these and thought it was one of the coolest bits of tech I ever owned. Your post generated so much nostalgia over having to hold my watch in just the right aspect to complete the data transfer. I remember people watching me sync and being shocked (although that was perhaps at how much of a nerd I was to have one). I like to think they were reacting to the tech.
Very nice work! Now I just need to find my old watch…