Audemars Piguet -

My own measurement was not so dramatic but we stil agree on the order of magnitude.

And we all agree, I think, that magnetism resistance is nowadays way more relevant than (extreme) water resistance.

We all know the water resistance of our watches, I think we should also know the magnetic resistance. Or, at least, make sure that the hairspring is non-magnetic (this is the most important part).

If anyone knows if AP uses such materials (and they really should), please let us know.

💰1479 Marketplace Listings for Audemars Piguet›

AP and the Nivachron hairspring

By: Glenn_2004 : February 21st, 2023-12:39

Dear all, Five years ago, it was announced that AP and Swatch developed a new non-magnetic hairspring. See, for example, here . Do you know if it is used in current calibers, in particular in the 4302 ? (A simple MacBook generates field of 80 000 A/m at t...

By: frnkvizr : February 21st, 2023-20:11

I don't know about the use of this hairspring material. But I would think your statement of a macbook producing 80.000 A/m (or 1.000 Gauss) at the wrist cannot be true. I wear many different watches, also vintage, also with a glass caseback. And I work on...

Well

By: Glenn_2004 : February 21st, 2023-21:33

I performed the measurement myself with a professional gauss-meter, so I can assure you that the field is 1000 gauss at the level of the keyboard. It is however true that It is lower at the place the watch is worn. It would be as I say if one was putting ...

BTW

By: Glenn_2004 : February 22nd, 2023-07:50

Just slide a metal object (a spoon or a knife) on your Mac close to the speakers, you will be surprised !

I would say it is even more ( 1400 Gauss ). We discussed that when I was at Omega. A cell phone, from memory, is 700 Gauss, already. A haidryer around 400.

By: amanico : February 22nd, 2023-08:43

By: Glenn_2004 : February 22nd, 2023-09:40

My own measurement was not so dramatic but we stil agree on the order of magnitude. And we all agree, I think, that magnetism resistance is nowadays way more relevant than (extreme) water resistance. We all know the water resistance of our watches, I thin...

Don‘t know for AP, but Swatch uses its Nivachron hairsprings extensively!

By: MCG (Markus) : February 21st, 2023-22:58

demagnetize regularly-with a quality machine -when was the last time you performed this task?-its a must do -but often forgotten.

By: golden hands : February 22nd, 2023-14:28

...

Yes and no...

By: Glenn_2004 : February 22nd, 2023-14:31

Demagnetizing is welcome when the watch is magnetized. For sure ! But remember that it basically work by first... magnetizing the watch (and then slowly cycling to smaller fields, therefore removing the memory effect) ! So, in principle, it is still bette...

pp website say - avoid exposing your mechanical watch to magnetic fields because they can alter its rate or even cause it to stop running,

By: golden hands : February 22nd, 2023-20:16

and vc website say-BIG CONSEQUENCES When it comes to mechanical watches – both manual and self-winding – are more sensitive to magnetic fields. In rare cases, a magnetization effect occurs on certain sensitive steel components of the movement, including t...