Search monte Carlo roulette pocket watch.the ones that were made between 1910 and 1920 look like they are quite valuable, and a pristine one sold for over $2000

It’s from the 60’s not worth much and not difficult to find

Sinn, you can’t go wrong. top grade sellita movement and their non chrono are very affordable…ish.

It’s a functional, highly legible tool, it’s a no-nonsense no baubles approach. Less is more. You get a top grade sellita in all non chrono, unlike most other brands.