No thanks, I want Wozniak’s watch.
http://www.bbc.co.uk/news/technology-31463351

Useless on my skinny girly wrist, and I’d forget to take it off in the shower.
Nixy tubes are great, though; I had a Nixy tube clock on my first iPhone, proper old-skool.

I’ve got a bunch of nixie tubes that I’d planned to turn into a clock as a recovering-from-surgery hobby/project a few years back. I hadn’t figured on just how de-motivating opiates can be though.