Meanwhile, there’s some evidence that Intercontinental distributors hated the inconsistent and sometimes illogical numbering programs of their Swiss overlords. 100M Water-proof: Using a h2o resistance of around 100M you can certainly manage most circumstances in everyday life, such as washing hands, rain, swimming(remember to tighten the crown when going into https://www.watchesworld.com/a-history-of-watch-reference-numbers/