In the meantime, there’s some evidence that Worldwide distributors hated the inconsistent and infrequently illogical numbering methods in their Swiss overlords. 012. They’ve taken lots of varieties over the years, but today’s Speedmasters can be found in various types and dimensions, from historically precise recreations to strong gold diamond-encrusted shiners, https://www.watchesworld.com/a-history-of-watch-reference-numbers/