I did have one reasonably expensive watch years ago ,but as an a/c techie I decided it was a waste of time wearing a good watch
For many many years now I have just been buying Casio F91W's (or similar),accurate enough and inc an alarm function + stopwatch function.
I only ever had one bit of trouble - just before I left the RAF I had a double trip in the back of a Hawk - delivery of 1 Hawk (post Servicing + Mods) and pick up the next a/c from Brawdy to go into the mod programme.
To use up most of the fuel on the way back to Abingdon (prep for wing removal) we did some aeros + a practice div into Brize.
When we landed - my watch face was completely blank
- however 1 hour on top of a hangar radiator revived it
(iirc the watch 'glass' was cracked anyway).
If the strap breaks or the battery goes flat I just buy a new watch