Not sure if this helps...
...but I have a Seamaster DeVille that has identical surrounds around the date window. It was given to me by my uncle. It was a graduation present from high school in 1966.
I can only share some info on the Seamaster Calendar (middle one) which was very similar to the one bequeathed to me by my late Dad.
Details were gathered from the research I made in 2017. Original condition: After having it cleaned and serviced: Details of the Seamaster Calendar including calibre and possible date of production. Hope these info will help! You got there a great timepie...
Thank you. I was rather surprise that the date could be set forward by pulling and pushing the crown.
For a moment I thought it was broken. I had posted more photos with the case back opened. It shows 19 jewels and caliber 501.
Thanks for sharing the pics of your Seamaster Calendar.
Just some unsolicited inputs, if I may: 1. The Omega logo of mine is applied and not typed with modern logo. Mine has 19 jewels also but is made of Cal 503 with 19800 beats 2. Also mine has date change done by moving time from 11pm to 1am. I have another ...
Thank you for sharing the information. I am trying to learn as much as possible.
I noticed the printed logo. Maybe the dial was reworked? Trying to find our more. I picked up all 3 Omegas yesterday afternoon while window shopping. The accuracy of all 3 watches are still good. Will probably send them for servicing. There was another co...
Most confusing. Ref 2846 is a non-calendar reference . . .
. . . fitted with either cal 500 or 501. The movement photo indicates it is a cal 501. Yet it's clearly either a cal 502 or 503 calendar movement. Either the photos don't match, or there's a hyper watchmaker involved. The dial is strange, too . . . the lo...
I think the logo is a reworked. Frankenwatch probably.
Photos are correct. Serial number is 16524515.
Bad news all around, sadly. Wrong movement, refinished dial. A shame, as it's . . .
. . . a desirable reference. Art
As an Omega collector for over a decade, I would . . .
. . . return them for a refund if it were possible. Best, Art
I tend to agree with Art especially on the Seamaster Calendar. Seems to be a strange watch.
Like Art, I would ask for a refund and will return the watch. Good luck!