|The largest independent, non-commercial, consumer-oriented resource on the Internet for owners, collectors and enthusiasts of fine wristwatches. Online since 1998.|
Vintage Heuer Discussion Forum
The place for discussing 1930-1985 Heuer wristwatches, chronographs and dash-mounted timepieces. Online since May 2003.
As far as I know, there are two diameter of ridged pusher caps: Autavia ones have the larger diameter (around 4.92mm if memory does not fail) and another smaller one (around 4.5mm diameter) used for the other models (Carrera, Montreal, Monaco, and so on).
Every ref has its own pusher, with a different barrell and pin lenght, but the ridged cap is the same...
I recently installed some NOS pushers for Autavia 1163 & 11630 on a 73663 and they fit perfectly, the lenght of the pin seems identical so chrono pushers start and reset the chrono functions as they should.
Hope it helps.