I haven't worn a watch in years. I used to wear a diver's watch because my hands were often underwater. Then I learned that smacking said watch against a rock instantly removes all waterproof features. After replacing the crystal several times, I gave up.
Now I tell time using (STRT), Sephirah's Temporal Reckoning Technique, with descriptive terms like "day", "night", or "hungry-ish".