Daytona Running Fast, 10 sec per MINUTE!
 

Hi All

I am having an odd issue with my Daytona, which I had just noticed today.

The time was about 3:30, my watch showed 6:05 or so. I reset the watch at that time, it was then about 15 minutes fast at 4:45 showing 5:05.

I then compared a 1 minute stopwatch to the watch time, and looks like the watch is 10 seconds fast roughly, as 50 seconds went by on the stopwatch.

I have no idea how this could have happened, I did not get near any metal objects that may magnetize it, nor did I drop the watch as I always have it on my wrist.

Would anybody have any ideas on what the issue is and how I may be able to remedy this? Or do I have to take it to RSC? I would hate to not have my watch all summer long, but not much I can do if it needs a servicing.

If it is a magnetizing issue, is that usually covered under warranty? I can't imagine it is a quick/easy fix, but curious on the turn around time.

Thank you in advance!

whether it's a warranty issue depends on how old it is. I think you're right though that it's probably not a quick fix, it will likely need a service.

That said, i took one of mine into an independent watch maker several years ago as it was running fast (not nearly as fast as yours though). He degaussed it but i don't think it made a considerable difference.

Its a 2021, so definitely under warranty. Just curious if it is indeed something with the magnetizing, as I can pick up a de-magnitizer pretty cheap on Amazon to give it a whirl.

I would hate to be out of a watch for 6-8 weeks for something small like that, but the better question is how does this happen out of nowhere?

Very strange and have never heard of any Rolex running fast like you state in over 50 years of being around Rolex watches.As for being magnetised in general its the hairspring thats the main culprit.But the Daytona was the first Rolex watch to have a parachrom hairspring fitted way back in 2000 but back then it was more of a grey colour, and according to Rolex cannot be magnetised. Although other parts in movement could get magnetised and in general they do speed up but run very very erratic or even stop and will not start. What was the state of the mainsprings power-reserve when this happen was the watch being worn or off wrist.

Your AD’s watchmaker could prolly do it right away. If this wasn’t purchased at an AD, then I see an RSC experience in your future.


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Padi, believe it or not this actually happened to me years ago with a different Daytona I had. RSC said it was the hairspring.

At any rate, as an update, I reset it before I went to sleep just in case. I woke up at about 7:00am, watch said 11:00.... I said what the heck let me give it a little love tap and wind it up.... since then it is pretty much bang on and back to normal. I can't explain it, but it just needed to be roughed up a bit!

If it happens again, I will definitely take it to RSC for them to inspect it.

If there is a drop of oil on the hairspring, or it sticks to itself for some reason, your watch would run fast as you described.

A smack could shake the oil off, or affect whatever is sticking the coils together.

In the days before non-magnetic hairsprings, they could get magnetized and stick to themselves. Now days most magnetization is to other parts and not the hairspring. Magnetized parts do react with other ferrous parts.

Amazing how durable yet delicate these movements are. I was also under the impression that the hairspring could not be magnetized, so your theory might be accurate.

Who knows, but at this time since it is running as it did before I am not going to push my luck and be happy my little italian tune up trick worked!

The 4130 since 2019 sometime, uses the same balance as the 9001 skydweller. It has a different shaped overcoil, and under the 4130 balance bridge the coils can get tangled if the movement received a sudden shock.
Its an easy fix for an on site watchmaker. Rolex has come out with a "hotfix" for those affected hairsprings and since changed the shape of the curve a bit.

Sounds magnetized but also could be a droplet of oil as Larry mentioned. The cheap demagnetizers on amazon are not easy to use effectively. Bring to any good watchmaker with a real demagnetizer and you will know with a few clicks of a button if the issue is magnetization or not. If you want to trouble shoot this sort of thing at home i recommend getting the Grobet 26.0415A they are one of, if not the best. Get also a timegrapher (weishi no. 1000 is sufficient). Take a reading before demag then one after if your reading changes you know the issue was magnetization.

Para chrome blue can't get magnetized. The issue is what I said above.

Ppl don't waste money on "Weishi" lol.

Did not know this. Very interesting. Thank you.


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Hairspring…