316L Really? Update #3.5 Gen Rolex Case

[FxrAndy]

Excelent info.

I run the mangnetic test on serveral watches i have at my work.

Breitling BCE v1:

Bracelet: magnet wouldnt stick.

case: magnet sticks although not very solid a bit of a shake and the magnet drops.

WM9 yachtmaster:

case and bracelet same as the BCE case, sticks though ever so slightly

DSN PAM 27b:

Same as with the WM9 and BCE case. The buckle however would not know nothing from the magnet.

Looking forward to the next episode of mythbusters.

This is very interesting! Now we're talking, I love threads like this!

I have a very strong magnet here with me at my desk at work, and I'm wearing my Skyland V3.

Bracelet (links) No magnetic attraction at all.

Bracelet Buckle- light attraction, barely sticks.

Watch case- no magnetic attraction at all

watch case back- STRONG magnetic attraction.

IWC INGY light attraction to the bracelet, stronger attraction to the case back

[Bike Mike]

Now correct me if I am wrong here, but just touching a caseback with a magnet to test attraction, I would imagine, is no good for a watch. However, since some casebacks are exhibiting magnetic properties, I would think that these watches would exhibit all kinds of weird problems even without being near a magnet. Think of it, your caseback is a magnet, and right up close to the movement 24/7, with no Faraday cage or shielding.

Your case back is not

[jmarin.72]

Excellent work BM!!!

Thanks for your time and effort my man

[AMK000]

Great test.

It seems that more and more "white lies" are popping up.

[ThinkBachs]

Thanks for taking the time to write this Bike Mike. I'm really looking forward to following this...

[Katerchen]

Then it dawned on me that my chrono avenger is made of titanium. I'm just a f__king idiot sometimes

Excellent Info!!

-------------------------------------

@andreww

concerning titanium and magnetism i found this on the net:

"...Titanium is Paramagnetic. This is a form of magnetism which occurs

only in the presence of an externally applied magnetic field.

Paramagnetic materials are attracted to magnetic fields, hence have a

relative magnetic permeability greater than one (or, equivalently,

a positive magnetic susceptibility). However, unlike ferromagnetic

which are also attracted to magnetic fields, paramagnets do not retain

any magnetization in the absence of an externally applied magnetic field."

Regards

George

[upland]

The iron-carbon diagram on the way..?

Great info,thanks Sir!

[FxrAndy]

Good point about the bracelet pins Mike.

Still on the same point, someone was asking the while ago as to whether the farady cages in out watches like the milgause and ingy actually works. Well they don't because i was able to stop all my reps with a STRONG magent but not my gen, so "just for looks" gents on that point.

[Star69]

WOW - thank a lot ! VERY interesting !

cheers,

Frank

[tudorking]

Great post Mike, thanks for taking the time and effort to do this.

regards

TudorKing

[coolfire]

Looking forward to more, Mike!

[Bike Mike]

The iron-carbon diagram on the way..?

Great info,thanks Sir!

Not a problem I have nightmares over this diagram. Had to memorize it and sketch it, label it, and discuss each transformation phase in detail for my metallurgy final! Then sketch the micro-structure for each phase transition!

So who wants a lesson in eutectoid temperature and Austenite-Ferrite transformation?

Thanks everyone. I will try to get a update posted tonight. My work serves seem to be having issues, so I am not able to pull down the micro-structure images of the bracelet. Might only be able to do a minor update.

[TeeJay]

Very interesting reading, thanks for taking the time to make it possible

[P4GTR]

Loving this thread Mikee, keep it coming! Bravo!

[thogaa]

Brilliant work

[Bike Mike]

Update #2. Enjoy!

[mad dawg]

Fantastic article!

In my profession, certification of materials is a big deal. Thus I was alway REALLY wondering what the PMI/Spark test would yield for so called 316 watches.

Well done!!

[coolfire]

WOW WOW WOW.... :Jumpy:

Anxiously looking forward to your case tests!!

[KB]

Bummer I missed it

Ken

[plaifender]

Hey Bikemike..

Amazing. Simply amazing. We're all grateful that you've dedicated your valuable time and energy from work projects to spread and share info with us here on the forum. Great contribution!

[Demsey]

So who wants a lesson in eutectoid temperature and Austenite-Ferrite transformation?

Me.

Good stuff Mike. I was eagerly awaiting this thread. Not disappointing.

[maxman]

Hey Bikemike..

Amazing. Simply amazing. We're all grateful that you've dedicated your valuable time and energy from work projects to spread and share info with us here on the forum. Great contribution!

+1 great job Mike

[JoJo35]

Just saw this post now. Great write up! Thanks so much for posting

[southcoast68]

Awesome article!!!! Can't wait to see the case test. :thumbsupsmileyanim:

Cheers

[P4GTR]

another fantastic update! This is one of the more interesting threads of 2009 if not all time!