viewed old cataloge in 1950 , ref4933 was a uniquely shape, its lugs resembles the tentacles of a snail. Apart from this photo, I can't find any other information on the Internet, and I wonder if anyone can share more information. If it didn't have a nickname before, maybe we could call it "snail".
I viewed that Italian forum, Orologi & Passioni. A reply there was consistent with my original idea, the case design for VC 6394 and PP 2551 exactly the same, only the shape of the case back is different. Until yesterday I carefully compared the pictures and realized that there was also subtle diffe
all photos from Antiquorum the middle one was rare , I couldn't use one word to describe its shape. left one, hand-engraved Lunette Linge bezel , right one been polished obviously. SoI think that most of the ref 6394 bezels were smooth when they were made , and needed to be hand-carved Lunette Linge
some ref 6394 without Lunette Linge bezel , I think the case been polished ,so lost its original texture. Maybe we could compare the lugs of ref 6394, with Lunette Linge bezel piece to without Linge bezel piece. If the bezel be polished, the lugs also should be polished. photos from Antiquorum An in