Omega

Hi All, I know this is occasionally discussed but I wanted to get some more information on the logo in the hesalite lenses of vintage Omega watches. I gather that this feature was introduced in the 1950’s but how long did its use continue? Was it used acr...  

has that as well, I think it's fairly common, maybe only on Hesalite and not Sapphire? I'm not sure.

1960s seamaster 321 chronograph:...  

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