I read a Robert Heinlein sci fi short story when still in high school about how a watch took over the life of its wearer. It made such an impression on me that I discarded my watch and have never wore one again.

I learnt that we, like most animals, have a built-in inner clock if we pay attention to it. Not for precision work, granted; but close enough for most of life's endeavors. Instead of listening, trusting it, we become a slave to constantly looking at our watch.

I also learned that there are sufficient public clocks to double-check our inner clock, so watches mostly are superfluous to begin with.

I also learned that not being a slave to a clock relieved a heck of a lot of stress in my live, and allowed me to concentrate more on what I was doing than time. The exception: when I became a consultant after "retiring", and billed by the quarter-hour, I had to note the time for billable hours. Bought an electronic clock for my office and it became second nature to note the time when I answered a phone call, began a document, whatever. When I visited clients, schedules and available clocks were still sufficient.