Magnetism

[Stickboy]

I tried searching, but couldn't find anything that applied to my situation. I operate a cardboard baler fairly often at work. When closing the door on it, my hand gets fairly close to a pretty strong electromagnet. This has me wondering if this would have any bad side effects on a newer Datejust 41.

[tyler_win]

Just keep an eye to see if you're gaining or losing a significant amount of time. If it is magnetized you can try using a demagnetizer.

[Kevin of Larchmont]

If it does you’ll know. Any reputable watchmaker should be able to demagnetize.

[S52]

Sounds like a great excuse to pickup a Milgauss :D

[planemad]

Originally Posted by S52

Sounds like a great excuse to pickup a Milgauss :D

Or a METAS Omega.

[Andad]

Your DJ 41 would not have an issue.

[padi56]

Originally Posted by Stickboy

I tried searching, but couldn't find anything that applied to my situation. I operate a cardboard baler fairly often at work. When closing the door on it, my hand gets fairly close to a pretty strong electromagnet. This has me wondering if this would have any bad side effects on a newer Datejust 41.

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.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.

Now older Nivarox hairsprings that were used thats the name of the alloy much like Rolex calls there Parachrom which is a made up name.Today Nivarox is used mainly in the watch/clock industry, but also in other micro-machine industries and in certain types of medical equipment and high precision surgical instruments. There are several variations of the Nivarox alloy depending upon the intended application. These alloys are stainless steel alloys with high concentrations of Cobalt (42-48%), Nickel (15-25%) and Chromium (16-22%). There are also small amounts of titanium and beryllium. Hairsprings made of this alloy are highly wear-resistant, and they are practically non-magnetic in normal wearing, and non-rusting and possess a low coefficient of thermal expansion.

Nivarox 1 through 5 is a series of grades of hairsprings with number 1 being the best quality. The most commonly encountered Nivarox hairsprings in the watch industry are grades 1 to 3. The alloy is unaffected by heat and normal everyday ordinary magnetic fields. There is however, also the Anachron hairspring which is said to be of even higher quality than the Nivarox No 1 grade.Who knows perhaps that the grade that Rolex used over the past 50 odd years before they started to use parachrom in all there range..

[Stickboy]

Thanks for all the replys, especially the wealth of information from Padi56. I'm new to Rolex, so I'm probably being over cautious. It sounds like my watch will be fine as long as I don't do anything stupid, like set it on top of a speaker for a long time or leave it on the actual electromagnet. And, my Datejust 41 being pretty new, sounds like it's pretty antimagnetic to begin with

[Stickboy]

Originally Posted by S52

Sounds like a great excuse to pickup a Milgauss :D

Ha, I tried for an Air King (uses the same case and insides for the most part), but that would have been harder to get than my Datejust.

[Jpccarguy]

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.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.

Now older Nivarox hairsprings that were used thats the name of the alloy much like Rolex calls there Parachrom which is a made up name.Today Nivarox is used mainly in the watch/clock industry, but also in other micro-machine industries and in certain types of medical equipment and high precision surgical instruments. There are several variations of the Nivarox alloy depending upon the intended application. These alloys are stainless steel alloys with high concentrations of Cobalt (42-48%), Nickel (15-25%) and Chromium (16-22%). There are also small amounts of titanium and beryllium. Hairsprings made of this alloy are highly wear-resistant, and they are practically non-magnetic in normal wearing, and non-rusting and possess a low coefficient of thermal expansion.

Nivarox 1 through 5 is a series of grades of hairsprings with number 1 being the best quality. The most commonly encountered Nivarox hairsprings in the watch industry are grades 1 to 3. The alloy is unaffected by heat and normal everyday ordinary magnetic fields. There is however, also the Anachron hairspring which is said to be of even higher quality than the Nivarox No 1 grade.Who knows perhaps that the grade that Rolex used over the past 50 odd years before they started to use parachrom in all there range..

Thanks, Padi. This is why I LOVE TRF!

[DJ2020]

I have magnetized mine, twice. But only after exposure to 8k - 9k guass. Far more than what your referring to.

Should not be a problem at all.

[JLM3]

Recently had my Daytona gaining a unreal amount of time and thought it was magnetized and I let it it run down picked it up after a few days and it has run fine. But other then that I have never had a watch get magnetized.

[Stickboy]

Good to know. This is my first automatic/mechanical watch, so I'm probably worrying about things more than I need to.