Next year this technical milestone will have it´s 30 anniversery

So - after 10 years into the bank safe - I decided to give this very rare
watch some wrist time.

And waiting for a simmilar innovation in 2019 ?!

WOW!!!! Gorgeous!!!

Indeed Gorgeous :o)

...and what a watch it is!

This is the ultimate Inge - and I sure do support your wish for IWC to
manufacture another watch like this (staying true to the heritage of the
Ingenieur line).

Thanks for sharing - much appreciated.

Love that watch Heiko!!!! Thanks for sharing.

Regards, Bob

Thanks to all for your interest and a view to the Cal.

This is the only IWC, I will place with OPEN case directly into the very
strong magnetic pyramide :-)

great watch but without good luck...very few were made and only few collectors
have well understood the importance of this piece.

What a treat! Thanks for sharing the pics with us...it's a beautiful Inge!

Lovely watch and fantastic pictures. You are right it should definitely have
some wrist time. Mine is in a safe 3000 km. away so I can only show you this
primitive picture at the moment. Thanks for reminding us of this interesting
Inge!

Jens-Kristian

Thanks to all for your interest, etc. on this special watch.

I have added a 1989 catalog scan, it shows which parts are involved to reach
this enourmous magnetic shielding.

Hi Hebe

Thanks for posting a true Ingenieur.

IWC knows, or knew, how to do it once. We can only hope to see again
amagnetic Ingenieurs in future models.

Agree Tony and finally a wrist shot.

Greetings

Heiko

Hallo Heiko

thanks for your post, great watch ...hidden champion.

It reminds me to enlarge my to expand my to-do-list 2019....have a closer look
to my ingenieurs and give them some wrist time. ;)

Best

Hajo

Really awesome pictures - as always - Heiko!

An unprecedented icon in IWC history!

A true gem! Please remind me again, which cal and ref this is?

Aaro

Together with Hebe , I did some research on this particular legendary
Ingenieur ref. 3508 in 2011(published in Horological Journal).

It is the most resistant watch to magnetism ever made by IWC and the most
resistant worldwide for decades.

It is even more resistant than the military Bund Ocean ref. 3519, used by the
German Navy minesweepers in the 1980ies.

Funny enough it has no protection by a soft iron inner case and the case and
sstrap are made of steel. But it was not necessary to use a soft iron inner
case.

The secret is the development by IWC together with the Swiss Straunann
Institue of nearly complete amagnetic alloys of which the vulnerable balance
and balance spring were made.

Unfortunately,the watch was an economical failure for IWC as it was extreme
difficult to make and even more to let it pass the high standard control
system.

Of the produced balance springs, many were disapproved, not meeting the high
level the factury had set. After the first batch of balance springs it turned
out that the reinterventions of the IWC watchmakers were extremely time and
money consuming for one particular watch. When the second batch came
available, all but a few balance springs were rejected. Then IWC decided to
stop the production. This means that collectors owning this watch have a
unique and rare piece which has passed all controls. With the fashion trend to
make smaller watches, this timepiece might become a classic for the second
time.

Regards,

Adrian,

(alwaysiwc).

Oh yes, this the rare beast based on the ETA 2892- A2.

Impossible to find these days.

IWC used Jaeger cals in the 1980s too and some of them were made in very small
series, I'm told, but no one has so far been able to get the production
figures, as far as I know. Surprising enough that you can still at times pick
these up for very reasonable money. Like ref 3275 (cal 3258) based on Jaeger
889 or 900.

Some IWC powered by JLC => Ing. Chronometer and Mark XII

Gorgeous movements!

OT, but another very interesting movement, very flat and my favorite modern
movement, and so it´s worth the OT :-)

IWC powered by Piaget CAl. 830(8), IWC Cal. 62060

Mechanical hand-wound
Functions : Hours, Minutes
Technical features : Balance with screws (that is, it's a free-sprung balance)
Power reserve (in hours) : Approx. 61
Frequency (vph) : 21,600
Frequency (Hz) : 3
Diameter (lignes) : 12.00
Diameter (mm) : 26.8
Number of jewels : 19
Thickness (mm) : 2.5
Number of components : 131