Fabulous piece ! Incredible details such as the guilloche bezel, the lugs and the way the crown is attached to the case.
Yesterday, I received an article per mail (via a friend-collector) about the VC automatic movements (cal 1019/1 - 1070 - 1071 - 1072 - 1072/1) with examples of the refs that used them. The article showed a ref 6394Q: your piece but with a (dial-spoiling ;-) ) date window (the Q indication). The article states that there have been several variants: with or without date but also with different dials. The mention a very special dial with vertical hour markers ! Speaking about special... However, all share the same case with elaborate guilloche (?) case bezel and handsome lugs.
Very nice article actually and I would be happy to scan it and forward the pdf.
Congrats on yet another nice VC !