Question about Rolex serial no.

[zaza]

This goes to Rolex gurus.

I'd like to know whether the serial of a genuine rolex movement should match that of the case (between lugs).

Any inputs are much appreciated.

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[alligoat]

Nope, completely different, at least on the 1570 movts- they begin w/ a D.

Are there even SNs on the 3035 and 3135? Don't recall seeing any.

[zaza]

Thanks alli

I was precisely inquiring about the 1570

So they don't need to match whatsoever right?

One more question

It's not very odd to see a 1560 movement on a 1665 sea dweller is it.

Thanks )

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[alligoat]

The 1570 replaced the 1560 around 1965 and the 1665 debuted around 1967+, so the 1570 (1575) is the only technically correct movement for either a 1665 or a 1680.

[zaza]

The 1570 replaced the 1560 around 1965 and the 1665 debuted around 1967+, so the 1570 (1575) is the only technically correct movement for either a 1665 or a 1680.

awesome!

Thank you Alli