Help please: questions about older Seamaster

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This is a link to approximate dates.


You will need to take your fine old watch to a real watchmaker to have the back removed to see the serial number, the movement type number and the case reference number. Take pictures. Have the watch serviced if you want to wear it. Be sure to stress to the watchmaker - no polish on case, no improvement of dial.
 
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like time of production
You can find a production year by comparing the serial number on the movement inside your watch to the table in this thread:
https://omegaforums.net/threads/omega-serial-numbers-on-watches.91390/
725135-4a9bb8a23f96279f27680e0541b16105.jpg
 
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Thank You very much!

I had the watch 2 yrs ago at my watchmaker, he serviced it for me.
It runs very well and surprisingly exactly!

Is it possible, this watch has a
hammer-Automatic, not one with a rotor...?! I m not sure, my watchmaker said something like that?!
could that be?
I could be wrong, mistaken it with another watch!

I ll open the back tonight, will post then pictures!

Thank You for Your help!
Very much appreciated!

greetings from Tokyo!

Hi TakoYaki-san (nice name!) and welcome to the forum.

There is a very easy way to find out if your movement is a full automatic or a bumper automatic.

Shake the watch sideways to see if you hear the hammer of the bumper. If you do, it is a bumper automatic. If you do not, it is an automatic with a rotor that rotates 360 degrees and therefore does not hit anything on it's rotation. 😉

Greetings from Berlin

Rudi
 
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Is the bumper automatic the earlier movement compare to the rotor movement?
Yes. Bumper movements from 1943 until 1956. Rotor movements introduced around 1954, depending on the model. Short overlap period where both were produced from 1954-1956.

Your watch is probably a bumper movement. If properly lubricated, you may not feel the “bump”.

The style on numerals on your watch is called “Breguet” and were popular around 1950 or so. The earliest Seamaster watches did not have “Seamaster” on the dial. Yours does, so it is a bit later than that. I think it is a US market piece, since dial says “Swiss” below 6 and not “Swiss Made”.

Hope this helps,
gatorcpa