One of the earliest, truly original black ref. 666 dials that I have seen.

 

That's very nice. I like Ingenieurs a lot.

 

Yes, please
Can't believe that was in your "old stuff". Absolutely wonderful watch...

 

And here's a shot of my 666 ...

 

All I would find by looking through my “old stuff” are socks with holes in them and my fourth grade report cards...

 

Oh wow!

 

Those are incredible. Especially for some old stuff.

 

Beautiful watch Bill.

Funny enough I was just about to bid on this one in the picture below and luckily there was a comment that this was an original a wrong case.

I have been attracted to Ingenieurs ever since meeting Tony. Unfortunately, they are out of reach for me.

 

Hi, this is mine. I would say its a redial. Any other thoughts? Thanks,

 

Another great Barn find! Wondering if the bracelet is original IWC?

 

I'd need to see more photos of 1jansen's watch and a date of production to form a strong opinion.

I see nothing wrong with the signatures, but it looks too clean to be original. More likely a service replacement, and certainly so if it's an early production watch.

 

Do these degrade heavily? One should think that a high end watch in a sturdy case ought to be protected well against aging.

 

The lume looks correct (I believe) but am I correct in thinking that the dial on a 666 mostly has a bit more degradation due to moisture getting in over the years ?
If it was an old service replacement would it have been a direct like for like swop ?

 

I believe the dial was soft iron which with a soft iron inner cover inside the caseback formed a faraday cage around the movement. Hence the ingenieurs claim to fame as an antimagnetic watch.

 

Yes, the lume looks too good for a watch made in the '50s or early '60s, unless it had been kept under extraordinarily favorable conditions.

Everything points to a genuine, IWC service replacement, but more photos and the date of manufacture would help to clarify matters.

 

Not quite correct. Only the date versions had soft iron dials. The non-dates were regular dials with a soft iron plate underneath.

 

Thanks, didn't know that. You mean underneath the dial I assume.

 

For me it was always a sign of redial on 666s if the "arrowhead" and the "lightning" in INGENIEUR is connected without visible gap. Which is the case here. Would love to get this hypothesis validated.

EDIT: like that:



And not to forget very nice 666s posted in here keep them coming. Will also post shots of two ones I used to own later...