“How to keep your watch from being stolen by a millennial:
Buy one with an hour and a minute hand!......... “
When my youngest was in college 5 years ago one kid in his class had a blank dial, hands only watch. Another kid asked how he was able to tell the time.
When I was in college, 50 years ago, I made a clock that ran backward (I reversed the magnetic damper on the motor). I also made a wooden box for it, with no markings on the dial. So, it had no numbers, and also ran backward. It was the only clock I used in my room.