Omega

pierre37
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Questions about speedmaster's bezels and crowns

HI,

 I have 2 questions about Omega speedmaster :

•      The first question is about the bezel : I can't define chronology. I read on "chronomania" (a French watch's forum) that the accent on the word "tachymètre" seems to have disappeared in 1969 to re-appear in 1996 (although that all the people doesn’t agree with this hypothesis, I think that it must be correct) however I haven’t any information about the dot upside or on the right of the “90”.

Ex :  105003 with dot on the right of the 90 

  There are many examples like this with 105012 where the dot of the 90 is sometimes upside, sometimes on the right…

•      Second question is about the crowns, I think there are 3 kinds of omega speedmaster ‘s crowns  :

First, is the recent crown (with well rounded omega logo), ex :

=> I would like to know since when this kind of crown have been use ? 

And 2 kinds of vintage crowns but I don’t know when one or the other have been used (I see 105012 with the 2 kinds of crowns).

Ex : (the vintage big size Omega logo, picture credit : 105012 of did on fam).

Ex : (the vintage small size Omega logo, picture credit : 105012 of valentin33 on chronomania).

If someone knows answers

Sorry for my my approximate English

                    Thank a lot

                           pierre37