Do the vintage daytona 722 movements have SN?

[Jason de Beijing]

Hi everyone, I got a question about vintage daytona. I checked on a couple of old daytona from the 60-70's such as 6241 and 6239. I could not find the movement serial numbers under 10x loupe. Didn't they come with SN because they were outsourced movements? My 1803 from the same period with in-house 1556 does have movement SN. If the chronographs don't have SN on movements, how does RSC confirm movement and case are original pair? Forgive me if I am asking dumb questions. Many thanks

[mdw3]

No, vintage Daytonas have no movement serial numbers, so it is not possible on these models for anyone to confirm that the movement is the actual original to the watch. All one can confirm is that it is of the correct type.

There is no such thing as a matched "original pair" with vintage Rolex anyway, unless one happens to have the original chronometer certificate, which on an older model (up until the late '60s) with the large COSC bulletin certificate, will confirm the reference, serial and movement numbers. I have never known any RSC to confirm that a particular movement is original to a particular case. Rolex is Rolex, but it is not Patek.

Michael

Originally Posted by Jason de Beijing

Hi everyone, I got a question about vintage daytona. I checked on a couple of old daytona from the 60-70's such as 6241 and 6239. I could not find the movement serial numbers under 10x loupe. Didn't they come with SN because they were outsourced movements? My 1803 from the same period with in-house 1556 does have movement SN. If the chronographs don't have SN on movements, how does RSC confirm movement and case are original pair? Forgive me if I am asking dumb questions. Many thanks

[Jason de Beijing]

Thanks so much Michael. Is it because the vintage daytona movements were outsourced? If rolex does not keep the record of the "original pairs", it would be easier to forge a fake vintage daytona with a regular 72 movement.

[jedly1]

no its because they weren't chronometer grade movements and therefore not numbered to certificate.

the rolex movt is modified by them so is not just a standard val 72.

on a side note there are some late 70's early 80's6263/5 with numbers that were left over from some 18k models but thats it.

[Jason de Beijing]

Originally Posted by jedly1

no its because they weren't chronometer grade movements and therefore not numbered to certificate.

the rolex movt is modified by them so is not just a standard val 72.

on a side note there are some late 70's early 80's6263/5 with numbers that were left over from some 18k models but thats it.

Hi Jedly1, do you mean 18k gold vintage daytonas have movt serial numbers?

[Keeperoftime]

Interesting...Speaking of Valjoux 72s..

Here's a Heur (Abercrombie and Fitch) movement. It looks to have a serial on it.