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1956 omega seamaster

G
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Hi to everyone..I'm new today and have posted this thread on another site in the group but don't know if ifs gone through..I'm Internet illiterate TBH.My questions are..it has a 505 movement which I thought went in constellations ...it has a date window but doesn't have calendar font on dial...it looks like it's original radium is still present in blobs of now caramel coloured lume...any info would be great..many thanks

20211002_201722.webp
 
hoipolloi
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G glennriley567@ho
Hi hoipolloi thanks for replying...no I had the back off when I bought it several years ago and its a 505
505 is a no date chronometer movement.
 
Dan S
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As noted, cal 505 is a no-date movement. Please show photos of the movement.
 
G
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Dan S Dan S
As noted, cal 505 is a no-date movement. Please show photos of the movement.
Thanks again for replying..there a photo at the top of the thread...this is my worry that I've bought a Frankenwatch
 
hoipolloi
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G glennriley567@ho
Thanks again for replying..there a photo at the top of the thread...this is my worry that I've bought a Frankenwatch
Photo of the movement, please.
 
E
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G glennriley567@ho
Thanks again for replying..there a photo at the top of the thread...this is my worry that I've bought a Frankenwatch
THe photo of the movement folks are asking for is to pop the back off and show it. As they've mentioned, if you have a real 505 movement in there then you DEFINITELY have a frankenwatch (or a fake!) since that movement doesn't have a date.
 
G
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G glennriley567@ho
Here they are
Actually ..cross checking the serial number it's a 1958..so the jewellery got the gead wrong as well...it's a good10 years since I bought if so I'll not be returning it.. you live and learn..I'm glad I've asked you all anyway.. many thanks
 
Wlcutter
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It seems to be basically a correct 2849 re case/dial/crown/hands, but powered by a chronometer-grade 505 modified to have a date. Strange watch.
 
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Wlcutter Wlcutter
It seems to be basically a correct 2849 re case/dial/crown/hands, but powered by a chronometer-grade 505 modified to have a date. Strange watch.
Haha"strange watch"..I think your 2 words cover a multitude of sins...I dare not ask about another l have which l believe to be a monster!!
 
E
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Wlcutter Wlcutter
It seems to be basically a correct 2849 re case/dial/crown/hands, but powered by a chronometer-grade 505 modified to have a date. Strange watch.
Could it just be a bridge swapped from another movement? Are there any similar movements that would have a date?
 
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E ErichKeane
Could it just be a bridge swapped from another movement? Are there any similar movements that would have a date?
It looks like it's still got its radium so I don't think it's a redial as such but obviously it doesn't have the calendar font which I find odd.Its also got its Omega symbol on the plastic crystal and Omega crown..so it's not like it's a real butcher job other than the obvious 505 on the bridge.
 
G
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G glennriley567@ho
It looks like it's still got its radium so I don't think it's a redial as such but obviously it doesn't have the calendar font which I find odd.Its also got its Omega symbol on the plastic crystal and Omega crown..so it's not like it's a real butcher job other than the obvious 505 on the bridge.
I'd read in the distant past that a very few Seamasters were given the 505 movement but only for about 6 months were the movements used before being superseded but that could have just been an opinion anyway.
 
hoipolloi
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The rotor and bridge were swapped from a 505. It was a 503 when it left the factory.
 
G
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G glennriley567@ho
Screenshot_20250111_204331_Samsung Internet.webp
I've just seen this that's muddying my water...a 505 seamaster with date window
Buf
G glennriley567@ho
Screenshot_20250111_204331_Samsung Internet.webp
I've just seen this that's muddying my water...a 505 seamaster with date window
But yes as you say I'd think it's logical to be swapped out for a different bridge...
 
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