Vacheron & Constantin Ref. 6506 Extra-Thin Gold Watch, Original Paper, Bi-Fold & Case
Case: No. 430755, two body, 18k yellow gold, ultra-thin, 33 mm
Dial: solid gold with brushed swirl design, applied gold baton indexes and hands
Movement: caliber 1003, No. 600555, 17 jewels, adjusted heat, cold, isochronism and five positions, stamped twice with Geneva quality marks, manual winding
Band: leather, plated buckle
Signed: Vacheron & Constantin, with original Certificate of Origin dated Feb. 26, 1968, holding case, bi-fold and black crocodile strap
Note: the original papers list the watch as "Extra-thin with solid gold dial"

Type: Vacheron & Constantin Ref. 6506 Extra-Thin Gold Watch, Original Paper, Bi-Fold & Case
Dial: swirl brushed finished solid gold
Hands: gold baton hands
Metal: 18k gold case and dial
Case #: 430755
Case Info: two body, ultra thin
Case Width: 33 mm
Case Thickness: 5 mm including the crystal
Crystal: glass
Watch Movement: caliber 1003, No. 600555, 17 jewels, adjusted heat, cold, isochronism and five positions, stamped twice with Geneva quality marks, manual winding
Band: leather, plated buckle, original crocodile strap included
Circa: 1968
Condition: movement is very good and running, dial is good, case is good