Again for Rolex/magnatism

[Solar]

Checking again; does anyone have any experience with a Rolex being magnatised by steroes, power drills, etc?

How are Rolex sport models in general for magnetic resistance?

Thanks

Chris

[Lloyd]

Not with a Rolex, but about 20 years ago, we used a powerfull magnetic generator to erase audio cassette tape, and much to everyones amasement, i let work about 20 min early, only to discover the following morning that my watch was 20 min ahead of my alarm clock. I seem to remember it was a quartz seiko.

[watchnut]

No, but I have heard that if you wear a solid gold Rollie, you become a babe magnet!

[JJ Irani]

Originally Posted by watchnut

No, but I have heard that if you wear a solid gold Rollie, you become a babe magnet!

[Obsession]

Funny topic, if we will always think these things we can never wear Rolex comfortable.

[Dimitris]

Just get a Milgauss and you are ok.

There is a nice list with the magnetic flux density on various appliances.

http://www.inchem.org/documents/hsg/...onNumber:1.1.1

[jac67]

Originally Posted by Dimitris

Just get a Milgauss and you are ok.

Or an Oyster Quartz.


John.

[astcell]

Well you can find out, you still have a little time left to get this:

http://tinyurl.com/296vgs

[padi56]

Originally Posted by Solar

Checking again; does anyone have any experience with a Rolex being magnatised by steroes, power drills, etc?

How are Rolex sport models in general for magnetic resistance?

Thanks

Chris

Most modern watches today including Rolex have some magnetic Resistance.If magnetised watch will sometimes completely stop, or run very very erratic. But even if it becomes magnetised you can get them demagnetised at a watchmaker.If is not very magnetised don't even have to get the back off.

Unless you are routinely exposed to fairly high magnetic fields, I would not be too concerned. In my job I have worked with/installed induction hardening systems that create fields much larger than people experience in most everyday situations. I pulled up some old data that I have on safety around various magnetic fields:

Standards for Exposure to Static Magnetic Fields

The ACGIH and International Council on Non-Ionizing Radiation Protection (ICNIRP) have set guidelines for continuous exposure to static electromagnetic fields as indicated in the table below:

Note: 1 Gauss (G) = 0.1 millitesla (mT)

5 G Highest allowed field for implanted cardiac pacemakers.
10 G Watches, credit cards, magnetic tape, computer disks damaged.
30 G Small ferrous objects present a kinetic energy hazard.
600 G Allowed TWA for routine exposure (whole body).
6000 G Allowed TWA for routine exposure (extremities).
20,000 G (2T) Whole body ceiling limit (no exposure allowed above this limit).
50,000 G (5T) Extremity ceiling limit (no exposure allowed above this limit).

I have posted signs and have installed a fence around our induction hardening equipment to indicate where the 5 Gauss (or 0.5 mT) line is, as this is where people with implanted cardiac devices could experience trouble. When the system is running, no area outside the fence exceeds 0.5 mT (and we have the equipment to measure this, at least our Research facility does). In the table above I don't know what they refer to specifically when they say watches (quartz or mechanical) but I can say that I have worn every mechanical watch I own just outside the fence with the cell running and did not have any problems whatsoever. This includes the Rolex when I had it, JLC, GO, BP, and a Seiko. Many of these are considered to be "fragile dress watches" by some, and suffered no ill consequences. So if someone who wears a pacemaker could be affected and my watches aren't, then I think that tells you that most "everyday" fields you come across are not a concern generally speaking.

We have other areas that have high magnetic fields, such as demagnetizing equipment (these are much more powerful than the type that would be used to demagnetize a watch or watch parts). I do use care around those as they are quite powerful and I have seen people with quartz watches inadvertently place their hand on one while it was running, and the watch hands spun around the dial very fast - moving an hour in a minute sort of thing. I don't believe there was any lasting damage as the watch returned to normal operation when removed from the field. Of course what that did the the going train I can only guess, but that person still wears the watch now some years later.

So although I would not intentionally subject any of my watches to what I thought was a strong magentic field, for most people these are not really an issue.

[Edensknight]

Great info, Avalon!