Anything more I can do for this 1570?

[MolluskMan]

Hi all, I am the proud owner of this dazzling Datejust 1601 with the truly old-school Caliber 1570 (it doesn’t even hack!)

I’ve had the movement serviced by the original seller (Beckertime) and demagnetized, but it still runs around 30-45 seconds fast a day. Obviously, I know that the movement is not going to run as a chronometer like it did 60 years ago, but I was wondering if there’s anything more I can do to increase accuracy or if should just be happy and accept that this is what I’m going to get with my vintage watch. Any thoughts welcome.

 

[hanski]

Short answer, yes. Rolex employs a mean time screw (micro Stella) on the balance wheel. These can be let out (same amount on both) to slow the wheel. Basically, regulate/adjust the movement.

but some questions for you:

Was it running that fast coming from Beckertime after service?
Who demagnetizsed?
Do you have a picture of Timegrapher results?
Is it consistently fast?

 

[s.orologiaio]

These caliber must be under chronometric specs. Also after 60 years, if it’s necessary replace all worn wheels, and get it serviced from a real professional watchmaker. It will run for other 100 years if well maintained


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[s.orologiaio]

Microstella screws mustn’t be touched before checking all other parts of the movement. If it’s serviced, has almost 250 deg amplitude (dial down), and still has 30-40 secs, so you can regulate the time. But in several years servicing Rolex i only regulated with microstella when they was touched from previous watchmakers, which corrected low amplitude-timing problem with balance screws.. usual mistake


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[hanski]

Was it this, https://beckertime.com/category/rolex-watch-repair-and-services/#stq=products&stp=1, Beckertime? It looks like they stand behind the work for 1-year unless you purchased an extended warranty.
I will note, they call their service a COA, Cleaning, Oiling, and Adjustment. My take on that is they don't bother with anything else that could be wrong.
But as s.orologiaio stated, a skilled watchmaker, after servicing a 1570, should achieve an amplitude of at least 270, minimal beat rate variance, and 0.0-0.1 beat error. If Beckertime sent the watch back to you with this kind of timing issues, I wouldn't be satisfied. I would insist on them fixing it or refunding your money.

 

[s.orologiaio]

This Beckertime seems a professional watchmaker, for sure they can solve your problem.. perhaps it can be a center wheel worn, or an automatic system issue, which doesn’t give enough energy to the barrel, amplitude is low, and timing Isn’t satisfying. But it’s possible to know only if you send it back!


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[MolluskMan]

Thanks for your thoughts on this. I actually sent the watch into Beckertime twice: the first time was precisely due to poor timekeeping, though it didn't help much. The second time was because the second hand was occasionally skipping and the watch was stopping when off wrist, so seemed like something got loose. It came back with great power reserve, but I think the timekeeping itself was actually worse after that second time. I unfortunately don't have a timegrapher so I can't test all those metrics myself, but anyway I kind of doubt sending it back a third time would yield better results. I suppose I could try, but maybe it's time to try another watchmaker?

 

[s.orologiaio]

Thanks for your thoughts on this. I actually sent the watch into Beckertime twice: the first time was precisely due to poor timekeeping, though it didn't help much. The second time was because the second hand was occasionally skipping and the watch was stopping when off wrist, so seemed like something got loose. It came back with great power reserve, but I think the timekeeping itself was actually worse after that second time. I unfortunately don't have a timegrapher so I can't test all those metrics myself, but anyway I kind of doubt sending it back a third time would yield better results. I suppose I could try, but maybe it's time to try another watchmaker?

Yes it is... maybe do some research on internet - Instagram to see if there’s a good technician near you !


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[mp1mancini]

There's an excellent watchmaker right next door in NJ, oascom.