Magnet check

[Gilgamesh167]

Hi guys
I took my datejust for validation and one of the checks he performed was trying to check with a magnet if any watch parts stick and he expected them not to.

Now, i was warned heavily not to ever get the watch close to a magnet. Could have he done any damage by doing that?

This guy definitely knows his way around a watch, so I assume he would not have done any damage to it. But the caveat is he was slightly surprised that the dial or the mechanical parts were giving a slight pull.

So the question arises, should they have some pull?
And could he have done damage? If so, how can I check that?

[Tools]

Not likely.

Magnets don't generally do any damage unless you throw them at your watch. Extremely high strength magnets and fields can magnetize the ferrous parts of a watch, but it is easily de-magnetized.

I don't know what your watchmaker was actually trying to do. Any ferrous parts will have some "pull"; it doesn't demonstrate anything else.

[chro.nic]

Could he have been using a compass, not a magnet to check for magnetization?

.nic

[Calatrava r]

I doubt anyone knowledgeable would put a magnet next to a watch. What would it test for. A compass type of instrument is needed to test for magnetism.

[prw]

I bought an Apple magsafe charger to put on my desk for my phone. My PP watch started running super fast. Solution was to move the charger away from my left hand and then buy a $20 degausser from Amazon. Fixed & keeps perfect time. There are magnets everywhere so a very brief once a year pass thru a degausser seems (at least for me) a good solution.

[eonflux]

There's an app you put on your phone called Lepsi that can detect magnetization.

[SearChart]

Validation of authenticity with a magnet?

[Andad]

Originally Posted by SearChart

Validation of authenticity with a magnet?

I had no answer for this thread Bas.

[SearChart]

Originally Posted by Andad

I had no answer for this thread Bas.

I don't think there even is a good answer

[HogwldFLTR]

I've heard of Rolex being Chick Magnets but never heard of Magnet checks. OP, welcome to the forum! Did you watch this procedure? Did he disassemble the watch prior to holding a magnet to the pieces?

[padi56]

Originally Posted by Gilgamesh167

Hi guys
I took my datejust for validation and one of the checks he performed was trying to check with a magnet if any watch parts stick and he expected them not to.

Now, i was warned heavily not to ever get the watch close to a magnet. Could have he done any damage by doing that?

This guy definitely knows his way around a watch, so I assume he would not have done any damage to it. But the caveat is he was slightly surprised that the dial or the mechanical parts were giving a slight pull.

So the question arises, should they have some pull?

Validation test authenticity with a magnet god give me strength whatever next,

[padi56]

Afraid you guys worry to much about your Rolex watches in general,first would doubt if anyone is in any extremely high magnetic field in any home situation or at this so called watchmaker to test Validation of authenticity with a magnet which is complete and utter boswellocks. Now Rolex watches are made mainly from S.steel or precious metals and in conjunction with nickel, brass or beryllium, bronze or Glucydur balance wheels so they are very anti-magnetic to begin not sure if the screws used are ferrous metal.Myself worked in the Steel industry for almost 30 years working with and around very very powerful electromagnets capable of lifting 10-15 tones, plus lots computers in control centre. And I never ever had any problem with Rolex or any other mechanical watch getting magnetised. I used to work with and repair high powered radio transceivers but owing to poor health thats now on stand by, but they did put out a quite strong magnetic field again never had a problem with any Rolex oyster or any other mechanical watch.

And according to Rolex the parachrom hairsprings are not magnetic,although there are other things in movement that could get magnetised, IMHO magnetised is often used as a cop out for just simple regulation but to demagnetise any watch is a very very very simple process to do.Even your own body puts out a magnetic field same for every electrical device in your home.Now anyone with any common brain sense grey matter would know never put any mechanical watch directly on any powerful magnet thats common sense as everyone should know.Today the Swiss standard test to be called anti-magnetic watches which most all Swiss watches are today, they have to pass a test including all Rolex.This is to withstand a strong magnetic field of 4800 Amps per meter,and to keeps on running with a maximum deviation of 15- 30 seconds per day.Now this test I am 100% sure that 99% of all watch wearers would never subject or come into contact with such a strong magnetic field.

[dannyp]

Originally Posted by SearChart

Validation of authenticity with a magnet?

Based on OP's location, I'm going to guess that the Hebrew word for "check" (in the sense of mechanical condition) probably translated to the English word "validation" in this case.

Sounds like the watchmaker was checking to see if any of those ferrous parts had in fact become magnetized and needed degaussing?

[saxo3]

Just to put magnitudes into perspective:

4800 A/m corresponds to about 60 G (Gauss) = 0,006 T (Tesla), which is NOT a strong magnetic field. According to ISO 764:2020 a watch must keep its accuracy to ± 30 sec/day, as measured before the test, to be acknowledged as a magnetic resistant watch.

Strong magnets can be found in most households and many people are not aware of it.

[Gilgamesh167]

Originally Posted by Tools

Not likely.

Magnets don't generally do any damage unless you throw them at your watch. Extremely high strength magnets and fields can magnetize the ferrous parts of a watch, but it is easily de-magnetized.

I don't know what your watchmaker was actually trying to do. Any ferrous parts will have some "pull"; it doesn't demonstrate anything else.

he was checking the watch magnetic field to authenticate the metals are real since they should not have any magnetic pull. i assume at least

[Gilgamesh167]

Originally Posted by HogwldFLTR

I've heard of Rolex being Chick Magnets but never heard of Magnet checks. OP, welcome to the forum! Did you watch this procedure? Did he disassemble the watch prior to holding a magnet to the pieces?

thanks!

no he did not disassemble it - he was confident it was real and said it would only create marks so there is no need to open a new watch for no reason.

i assume the magnet was used for checking the breacelet and other non magnetic parts - since if the magnetize the metal is fake - or so I figured.

[tifosi]

Sounds like something they'd to in the 1700s or something...

[Gilgamesh167]

Originally Posted by saxo3

Just to put magnitudes into perspective:

4800 A/m corresponds to about 60 G (Gauss) = 0,006 T (Tesla), which is NOT a strong magnetic field. According to ISO 764:2020 a watch must keep its accuracy to ± 30 sec/day, as measured before the test, to be acknowledged as a magnetic resistant watch.

Strong magnets can be found in most households and many people are not aware of it.

so the question is - could he have damaged the watch?

[TheVTCGuy]

Was it a Milgauss?


Oh, I crack myself up!

[Ruvv]

That is not something i would do

[joli160]

I would not trust the authenticators conclusion

[Gilgamesh167]

Originally Posted by joli160

I would not trust the authenticators conclusion

why not?

[RFC]

Originally Posted by padi56

Afraid you guys worry to much about your Rolex watches in general,first would doubt if anyone is in any extremely high magnetic field in any home situation or at this so called watchmaker to test Validation of authenticity with a magnet which is complete and utter boswellocks. Now Rolex watches are made mainly from S.steel or precious metals and in conjunction with nickel, brass or beryllium, bronze or Glucydur balance wheels so they are very anti-magnetic to begin not sure if the screws used are ferrous metal.Myself worked in the Steel industry for almost 30 years working with and around very very powerful electromagnets capable of lifting 10-15 tones, plus lots computers in control centre. And I never ever had any problem with Rolex or any other mechanical watch getting magnetised. I used to work with and repair high powered radio transceivers but owing to poor health thats now on stand by, but they did put out a quite strong magnetic field again never had a problem with any Rolex oyster or any other mechanical watch.

And according to Rolex the parachrom hairsprings are not magnetic,although there are other things in movement that could get magnetised, IMHO magnetised is often used as a cop out for just simple regulation but to demagnetise any watch is a very very very simple process to do.Even your own body puts out a magnetic field same for every electrical device in your home.Now anyone with any common brain sense grey matter would know never put any mechanical watch directly on any powerful magnet thats common sense as everyone should know.Today the Swiss standard test to be called anti-magnetic watches which most all Swiss watches are today, they have to pass a test including all Rolex.This is to withstand a strong magnetic field of 4800 Amps per meter,and to keeps on running with a maximum deviation of 15- 30 seconds per day.Now this test I am 100% sure that 99% of all watch wearers would never subject or come into contact with such a strong magnetic field.

Magnetism is a bigger problem with mechanical watches than most would think. IMO vintage and neo vintage Rolex can become magnetized in our daily routines in modern life. My 5513 and 14060M have both been probably magnetized from my repeated contacts with laptops for long hours during the day. The Lepsi app indicated a 34 value for the 5513 but no magnetism for the other Sub. Both had been running at 1-2 s/day until both suddenly deviated to more than 13 s/day (5513) and 6 s/day (the M). After degaussing them both came down to their usual rates. I rotate my watches after a week or so and would not have noticed they were slightly magnetized unless I tested them with my timegrapher which I do from now and then. I’m guessing that vintage pieces especially, become magnetized and run slightly faster more often than one would think. I have no explanation for the rate deviation and correction in these two Subs other than magnetism.