tee530
427
80110 from JLC?
Hi Dean,
I'd love to hear more too. It's been a while since I followed the story of IWC's 80110 movement, but I seem to recall it was an inhouse development project, and not built by JLC from cal 875 (Autotractor). I also thought that the winding systems were fairly different (modern Pelleton with jeweled, bidirectional rotor for IWC; unidirectional ceramic ball bearing rotor for JLC).
The controversy, if you want to call it that, around 80110 was that the power train geometry (ie wheel sizes and locations, but not the wheels themselves) was taken from the Valjoux 7750. Some (not me) felt this meant the 80110 was simply a dressed-up 7750. I think IWC resisted discussing this for a while, then eventually made a statement that was essentially a shrug: sure, the wheels may be in the same places as in the 7750, but there are only so many ways to lay out a 30 mm movement, and the power flow of the 7750 is considered excellent. Why re-invent the wheel (or the wheels)? 
But I could be misremembering or confusing two different stories. A JLC connection would be interesting.
Tom
My new, white metal...
Can't help you myself
Yes, JLC uses the Kurt Klaus perpetual calendar module...
