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What caliber are these date disks for?

watchlovr
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I bought these ages ago under the impression they were for a cal 552 edit cal 565 (Seamaster 300 date etc)

Just googled it and possibly i’m (not for the first time) wrong?

IMG_3446.webp
Edited:
 
DON
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Package says caliber 560, but most likely fits other 56x movements.

I’m on my iPad and Jules Borels legacy parts list doesn’t open up on it to check
 
Spruce
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….. and isn’t 552 a non-date calibre?
 
watchlovr
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Spruce Spruce
….. and isn’t 552 a non-date calibre?
Course it us. Should be cal 565. Getting old. Makes more sense now.
 
DON
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550, 551, 560, 561, 2, 3, 4, 5, 610, 611 and 613
 
Archer
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DON DON
550, 551, 560, 561, 2, 3, 4, 5, 610, 611 and 613
550 and 551? That would be a neat trick...here's a 551 dial side...

551.webp


watchlovr watchlovr
Course it us. Should be cal 565. Getting old. Makes more sense now.
The way Omega part numbers work is that the base caliber the part is from will be listed, so in this case 560 is in the part number. As you know, that doesn't mean that they cannot be used on other calibers than just the 560, so this is used on all the 56X date movements, and the 61X series. It is not compatible with the 75X series though.
 
DON
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Archer Archer
550 and 551? That would be a neat trick...here's a 551 dial side...

551.webp



The way Omega part numbers work is that the base caliber the part is from will be listed, so in this case 560 is in the part number. As you know, that doesn't mean that they cannot be used on other calibers than just the 560, so this is used on all the 56X date movements, and the 61X series. It is not compatible with the 75X series though.
Borel mentions those calibers. I just didn't notice the two didn't say calendar.

Also. Haven't restored or worked on any Omega movements in almost 16 years. Forget things
 
ErichKeane
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Archer Archer
550 and 551? That would be a neat trick...here's a 551 dial side...

551.webp



The way Omega part numbers work is that the base caliber the part is from will be listed, so in this case 560 is in the part number. As you know, that doesn't mean that they cannot be used on other calibers than just the 560, so this is used on all the 56X date movements, and the 61X series. It is not compatible with the 75X series though.
How neat? I have super glue...
 
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