IWC Ingenieur with aged dial

I have an 1832 with an aged/damaged;tropical dial.

Have people seen other examples where a dial presents like mine?

Hi Intothevoid,

whow that watch has seen some intense life. This is what a tool watch is made for. 

br Cromagnonman

Hi,

the dial of the Ingenieur Ref. 1832 is made of soft iron for it's resistance against magnetic fields. As the protective coating on the dial ages, the soft-iron base of the dial may come into contact with oxygen and oxidize. This can then lead to damage - ageing like this.

br

Cromagnonman

Thanks. That’s interesting because the normal tropical process on vintage watches is a brass plate showing through a black lacquer. I haven’t seen another 1832 with this rusting. Presumably that’s partly down to there being few 1832s and I’m guessing others had replaced dials in service. Does that sound right? Have you seen others like this and does anyone have any images?

Hi Intothevoid,

The oxidation pattern on IWC's soft-iron Ingenieur dials is not unusual. Below is a photo of an IWC Ingenieur Ref. 3505 (image courtesy of the Vintage and Prestige website). The dial shows similar signs of oxidation to those on your watch. (you have to zoom in to see the problem)

br

Cromagnonman

As chromagnon said: The dial of the 1832 is made of soft iron to grant the antimagnetic capabilties of the watch. Soft iron heavily tends to rust. Therefore for example many Mk. 11 dials show rust unless replaced during service.

Presumably there was some ingress of water/humidity with your watch, what resulted in these rust spots.

Th. Koenig