Actually, no, it looks stupid and is stupid. Hands carry all sorts of dirty bacteria. Those watches won't last. Maybe that's what they want though.

When was the last time you wanted to have a little pebble under your watch strap? Let's wash dishes! Na!, my watch! Digging? Nah! My watch! Sex with a partner? Nah! Watch marks! Sex alone? ER watch strap stuck to penis! No!

Not for cooking, not for motorbiking or driving unless you like cuts on the little webs between your fingers. This is a dumb idea.