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·Hello, Omega Forums members,😀
Normally, for 4-digit Omega Constellations from the 1950s, examples of the fonts for each reference are demonstrated here.
Although there is some variation in the font, you will notice the ‘stepwise pattern’ where ‘CHRONOMETRE’ is longer than ‘AUTOMATIC’, while ‘OFFICIALLY CERTIFIED’ is the longest. Thanks for the nice examples from these forums.
In this thread, I will mainly focus on reference 2852 with caliber 501 (19 jewels).
From my research, the caliber 501 (19 jewels) was used for a short ‘early’ period in reference 2852 (also 2887) with movement numbers approximately from 14,8xx,xxx to 15,1xx,xxx. These can feature a plain dial, waffle dial, or the arrowhead markers, which are the most desirable (in my opinion). Please see examples I found on the internet.
Please note that among the early references of 2852 with caliber 501, I believe that there is a ‘special font’ used only in the ‘very early’ models. According to my research, it was used only for the domed dial (from 5 examples) with movement numbers from 14,8xx,xxx to 14,9xx,xxx (from 3 out of 5 known movement numbers). The length of the word ‘CHRONOMETRE’ is shorter than ‘AUTOMATIC’, and the straight ‘M’ in ‘CHRONOMETRE’ is usually not found on the domed dial for reference 2852.
All five examples I found:
Interestingly, the ‘dotted minute ticks’ pattern from both examples number 4 (18k black dial) and 5 (steel black dial) are, at least in my opinion, very uncommon. 😉
It is used only for special Constellation models like the ‘Double Signed Constellation-Seamaster’ posted by @kyle L . https://omegaforums.net/threads/omega-oddity-double-signed-constellation-seamaster.61304/
Today, I would like to share my 2852-4 SC.
The case is steel with ‘pink gold’ hardware.
The movement is chronometer-graded caliber 501 (19 jewels) with the movement number 14,975,xxx. The production date is likely around 1955 to early 1956.
In my opinion, the dial is the original cross-hair black two-tone dial with generalized spots from aging.
The pink gold hour markers are original with the ‘shark tooth’ or ‘dagger’ figures, matching the pattern from at least five known examples.
The dotted minute ticks are original with their color preserved.
Caliber 501 is correct and matches well with the movement number as I discussed before.
The luminous hands are correct and well-matched with the hour markers.
The thick ‘flat feet’ decagonal crown is original.
The ‘pink gold’ observatory and all-star medallion on the case back are still intact.
The case was polished in the past.
Kindly note that the dial is two-tone.
Here are more close-ups of the fonts.
The last picture was taken when the dial was removed from the case.
An identical example to my watch is example number 4 posted in the forums by @Dablitzer. It would be good if we could know the movement number and the batch of that watch; unfortunately, the owner has not been active since November 2014. https://omegaforums.net/threads/omega-constellation-cal-501-black-dial-rg-markers.6180/
Indeed, all the dotted minute ticks with the uncommon shorter ‘CHRONOMETRE’ fonts are identical. Noteworthy is that the hour marker at 6 o’clock on the 18k model might be incorrect, as it should match the markers at 3, 6, 9, and 12 o’clock.
Finally, my wrist shot.
Again, I apologize for the abundance of pictures.
Capturing pictures of the black dial is not easy.😀
Thank you, everyone, for your comments.
If anyone has a watch with the special font or dotted minute ticks in any omega ‘constellation’ model from the 1950s or 1960s that I missed, please share.
Best,
Teerapat
Normally, for 4-digit Omega Constellations from the 1950s, examples of the fonts for each reference are demonstrated here.
Although there is some variation in the font, you will notice the ‘stepwise pattern’ where ‘CHRONOMETRE’ is longer than ‘AUTOMATIC’, while ‘OFFICIALLY CERTIFIED’ is the longest. Thanks for the nice examples from these forums.
In this thread, I will mainly focus on reference 2852 with caliber 501 (19 jewels).
From my research, the caliber 501 (19 jewels) was used for a short ‘early’ period in reference 2852 (also 2887) with movement numbers approximately from 14,8xx,xxx to 15,1xx,xxx. These can feature a plain dial, waffle dial, or the arrowhead markers, which are the most desirable (in my opinion). Please see examples I found on the internet.
Please note that among the early references of 2852 with caliber 501, I believe that there is a ‘special font’ used only in the ‘very early’ models. According to my research, it was used only for the domed dial (from 5 examples) with movement numbers from 14,8xx,xxx to 14,9xx,xxx (from 3 out of 5 known movement numbers). The length of the word ‘CHRONOMETRE’ is shorter than ‘AUTOMATIC’, and the straight ‘M’ in ‘CHRONOMETRE’ is usually not found on the domed dial for reference 2852.
All five examples I found:
Interestingly, the ‘dotted minute ticks’ pattern from both examples number 4 (18k black dial) and 5 (steel black dial) are, at least in my opinion, very uncommon. 😉
It is used only for special Constellation models like the ‘Double Signed Constellation-Seamaster’ posted by @kyle L . https://omegaforums.net/threads/omega-oddity-double-signed-constellation-seamaster.61304/
Today, I would like to share my 2852-4 SC.

The case is steel with ‘pink gold’ hardware.
The movement is chronometer-graded caliber 501 (19 jewels) with the movement number 14,975,xxx. The production date is likely around 1955 to early 1956.
In my opinion, the dial is the original cross-hair black two-tone dial with generalized spots from aging.
The pink gold hour markers are original with the ‘shark tooth’ or ‘dagger’ figures, matching the pattern from at least five known examples.
The dotted minute ticks are original with their color preserved.
Caliber 501 is correct and matches well with the movement number as I discussed before.
The luminous hands are correct and well-matched with the hour markers.
The thick ‘flat feet’ decagonal crown is original.
The ‘pink gold’ observatory and all-star medallion on the case back are still intact.
The case was polished in the past.
Kindly note that the dial is two-tone.
Here are more close-ups of the fonts.
The last picture was taken when the dial was removed from the case.
An identical example to my watch is example number 4 posted in the forums by @Dablitzer. It would be good if we could know the movement number and the batch of that watch; unfortunately, the owner has not been active since November 2014. https://omegaforums.net/threads/omega-constellation-cal-501-black-dial-rg-markers.6180/
Indeed, all the dotted minute ticks with the uncommon shorter ‘CHRONOMETRE’ fonts are identical. Noteworthy is that the hour marker at 6 o’clock on the 18k model might be incorrect, as it should match the markers at 3, 6, 9, and 12 o’clock.
Finally, my wrist shot.
Again, I apologize for the abundance of pictures.
Capturing pictures of the black dial is not easy.😀
Thank you, everyone, for your comments.
If anyone has a watch with the special font or dotted minute ticks in any omega ‘constellation’ model from the 1950s or 1960s that I missed, please share.
Best,
Teerapat
































