In the meantime, there’s some evidence that international distributors hated the inconsistent and sometimes illogical numbering programs of their Swiss overlords. 100M Water-resistant: Using a h2o resistance of around 100M you can certainly tackle most scenarios in everyday life, such as washing arms, rain, swimming(you should tighten the crown when https://www.watchesworld.com/a-history-of-watch-reference-numbers/