The Merivian Company introduces its new watch:
The First Circadian Chronograph: Merivian is the first watch that aligns time with your circadian (daily) rhythm.
Merivian is the only watch where the middle of your day is truly in the middle of the watch. Because, honestly, 12 o’clock isn’t anyone’s real midpoint. Our daily rhythms are personal, so the way time is represented should be too.
24hourtime.info 
That looks super interesting! Exactly what I need to remind me every day to focus on my sleep! Seems to be the only 24 hour watch with a rotatable dial. Love the idea!