One of my favorite books is The Billionaire Who Wasn't, about Chuck Feeney of DFS (Duty-Free Shoppers), and it keeps referencing his cheap Casio watch:
“Since my earliest days I have been frugal, but I am a frugal person in that I hate waste, at any level,” says Feeney, who always wears off-the-peg clothes, a cheap plastic watch, and reading glasses of the type sold in book-stores. “If I can get a watch for $15 that keeps perfect time, what am I doing messing around with a Rolex?”
https://www.amazon.com/Billionaire-Who-Wasnt-Secretly-Fortun...
[Incidentally, it means the $200 Pebble watch I wear & love is 13x more expensive/extravagant than that of a billionaire. Gives an interesting perspective.]