1952 Omega 2640 Guilloche dial

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Vintage12

·Feb 21, 2022

I just dived in to the deep dark rabbit hole of vintage watch collecting - and it's all your fault.

As a newbie to this I'm hoping to get feedback on new acquisitions as well as prospective purchases. This first one here is already purchased, I fell for the beautiful dial, wonderful patina and the guilloche drew me in. The watch ref# 2640-5SC is a nice 36mm case size, tiny logo on the crystal, also crown. The hands seem correctly matched to me. I noticed there was no script (Seamaster?) at 6 o'clock. I'm no expert on Omega watches though - so all legitimate?

Timekeeping is off, which I expected. +117.9 s/d, 142degrees, -1.1ms probably hasn't been serviced in a while.

Thanks in advance.

 

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DON

·Feb 21, 2022

Check of the reference shows the h/m hands to be correct. Sweep not correct (too long)

Crown correct

Just an Omega model. Not a Seamaster

Nice piece. Never seen that dial before

DON

 

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qazwsx1

·Feb 21, 2022

Mine says hi.😁

 

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Dan S

·Feb 21, 2022

Great dial.

 

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Screwbacks

·Feb 21, 2022

if i am correct. omega caliber 283, 284 & 285 are pre-seamaster series. nice dial which is far more important character. good luck.

 

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Vintage12

·Feb 22, 2022

Just a quick note of thanks for the very helpful comments.

DON - Do you have a reference book or site you use to help assess originality for these older models and movements? I searched myself but it seems a minefield out there. Perhaps it comes with experience.

Qazwsx1 - I recognize that dial. Looks great!

Dan - Cheers.

Screwbacks - Ah, that makes sense. As noted, this is the caliber 283. These dials look even better in person.

 

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qazwsx1

·Feb 22, 2022

Thanks @DON for your comment about sweep hand.
I am not sure about the minute hand that longer than the minute dots too.

However, in my watch, sweep hand was too long too ?but it got the same length with minute hand.

Thanks,
Teerapat

 

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DON

·Feb 22, 2022

I took the reference number from the case back and did a Google search. Compared watches with the same dial for the hands and the crown, If two or more have the same crown. You can assume it's the correct crown. Same for the hands

Hands on some Omegas I just find odd. My point of view is that the minute hand and sweep hand should touch or extend no more than 1/4 of a mm in the minute marks. The tip should point to the marks and extending past them is pointless.

A vast number conform to the right hand length, but some don't

Sweep could be correct,, but this white dials model has a short length



DON

 

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qazwsx1

·Feb 22, 2022

Thanks very much @DON 😀

 

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Vintage12

·Feb 22, 2022

Mine under the scope from directly above, minute and sweep shown. So all three of these watches are different for sweep, interesting. The alignment with the pips sounds like the right answer.

 

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Screwbacks

·Feb 22, 2022

qazwsx1

Thanks @DON for your comment about sweep hand.
I am not sure about the minute hand that longer than the minute dots too.

However, in my watch, sweep hand was too long too ?but it got the same length with minute hand.

Thanks,
Teerapat

I attempted to collect the omega pre-seamaster series (283,284,285 and maybe 286 manualwind) while they were so simple, affordable and sturdy calibers, but found them to be so hard to find, especially in that dial condition. 😉