Meanwhile, there’s some evidence that Intercontinental distributors hated the inconsistent and often illogical numbering programs of their Swiss overlords. 100M Watertight: Using a water resistance of around 100M you can easily take care of most circumstances in life, such as washing palms, rain, swimming(please tighten the crown when likely into https://www.watchesworld.com/a-history-of-watch-reference-numbers/