The lugs do not have the Linge finish , are always polished. Those with bolished carrure, should however show some extra smoothening of the edges. For me (and may be wrong) all ref 6394 should be like this:
Good morning In the years I have been lucky enough to have a couple of Vacheron ref. 6394, one in yellow and one in white gold. Both of them had the very distinctive hachure croisé e of the carrure (or Lunette Linge as suggeste by Tick Talk). Now, in an Italian forum some think that there were varia