This is to address Paul Gavin's comments on the variety of BEZELS showing up on specific watches. Yes, the owner determines the configuration he likes best and therefore we see variations. There may be another reason why this happens. In the late 1990's, we imported some special Pilot watches and to get the know the product line, I had a chance to visit and see the production, assembly and testing in various "Ateliers" - Factories. Talking to a Master Watch Maker he ask me "What watch do you wear? My answer: A Heuer Autavia GMT. "Ah, the infamous Caliber 11" his response. I ask WHY? He explained : The chronograph is unreliable and has timing errors due to the swinging pinion that drives the sweep hand, it jumps and loses time." When I pointed out that the Valjoux 7750 uses the same concept, he had no answer. I was puzzled. During my tour I got the impression that there is rivalry, held grudges and a general attitude "Well, we have done it for years and so be it", i.e. No thinking outside the box.

Are some folks still upset that Heuer along with Van Buren and Dubois-Depraz produced the first Automatic Chronograph. I detected a definite mind set in that industry and this could be the underlying reason for deviation in products that don't quite make sense. Jack Heuer on the other hand was a visionary in his way of DIAL and BEZEL design and this may be the reason for his success even tough with the minor inconsistencies.
P.S. Note : On cal. 11/12/14, if the Sweep Hand Drive Gear is adjusted properly, there is no jumping of the sweep hand. ( Eccentric screw 8412 adjusts the pinion gear 8086 to mesh the sweep hand gear 8000). This per HEUER Tech.Manual for Selfwinding Chronographs given to me by Jack Heuer in 1978 on a visit when I picked up a GMT from overhaul.
This may shed a little light on your inquiry and once again a bit of history might give us some answers. Best regards, Heinz Rengel.