Does every Omega Seamaster 120 Vintage have a "black date" or are there also models where a "white date" (black font on white base) is legit?

I believe that the only two Date-References of this watch are:

136.027 Manual Movement, with Date, Caliber 613
166.027 Auto Movement, with Date, Cailber 565

 

100% original from 1st owner and a "white date"

 

The one I owned also had a white date disk...

 

Many thanks for your posts. Its difficult to understand for me how watches with the same ref number can have different date colors? Did anyone think about this?

 

136.027 manual


166.027 Auto.......all black dates

 

I might be mistaken but I think I have seen an original Omega advert for the 120 Seamaster which shows a white date. You should be able to find the ad if you do a Google search. I assume the same holds true for its big brother, the Seamaster 300.