Unfortunately, I can't answer your question, but I agree the movements are beautiful. If someone started to make exhibition casebacks, I think they woul sell like hot cakes!

Stewart

: I have just cracked open my watch for the first time and the
: movement is mesmerising!

: I have a Panerai with a glass caseback so I can see the workings
: but the autavia is obviously far more complex and interesting.

: How did they manufacture the components back in the 60/70's? I
: appreciate the technology was not necessarily new at this point
: in pocket/wristwatch manufacturing.But prior to computer design
: and the micro technology available today how were these parts
: made- and so accurately?