Wow, nice! 1920's? Very cool... I assume it's all functioning correctly? Those blued hands tho. The crown looks to be replaced (a long long time ago, no doubt). But I am as far from an expert on these watches. Here's something on the the forums from a while back where a member identified the 7mil serial as 1920-23. I would have no clue what a 4mil serial would date to, but my sherlock-esqe intuition tells me that it will be before that! https://omegaforums.net/threads/please-help-id-this-omega-watch-1920s.28231/ Edit: Looks like it may be closer to 1910. But perhaps you have some more insight to it
Hi I think it's made around 1913 1914 has a nickel case aprox. 36 mm without crown and now it's at watchmaker place for service after I think long long time ago Thanks for info.