IIRC anything over a certain number of jewels (my memory says something like 17 jewels for a simple handwind; 24 for a date automatic?) is probably just marketing, and doesn't make any performance difference to the movement.
@Thrustvector started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
IIRC anything over a certain number of jewels (my memory says something like 17 jewels for a simple handwind; 24 for a date automatic?) is probably just marketing, and doesn't make any performance difference to the movement.