In the meantime, there’s some evidence that international distributors hated the inconsistent and sometimes illogical numbering methods in their Swiss overlords. Possibly most important with respect to horological history writ big was the debut of the “Omega” caliber in 1894, a 19-ligne, crown-set movement whose interchangeable components had been intended https://www.watchesworld.com/a-history-of-watch-reference-numbers/