It seems that the "Lift Angle" for nearly every other make of watch is easily available on the Internet, and yet, for some reason Heuer, and Tag Heuer seem not to play by the rules.
Have been searching for Cal 12 Lift angle with no luck. Any suggestions from the experts.

: Hi, was wondering if anyone sould point me to a source where i can
: obtain lift angles of various movements used by vintage heuers?
: I have googled like crazy and get everything (including russian
: watches) but zip on vintage heuers only newer tags.

: I need it to use on timegrapher for anplitude calculations.

: If not then its the manual way of estimating lift angle which is a
: pain especially on automatics.

: Thanks!