Scotto passed along a few pics of this fun little item he owns. I couldn't find much info about it on the web, so I knew my website collection of oddities would be a perfect place to display these.
From what I can gather, this is a data organizer wristwatch from about 1992. It's not a real Mac computer or anything, the name apparently comes from its ability to share data with a Macintosh.
Scotto says it communicates via AppleTalk to the host Mac.