Limited Swiss gold IWC watch with moon phase Circa 1977

Gold open faced lever watch
–
A rare, very fine, limited IWC moon phase watch with triple date, 18K gold with original box and original papers, circa 1977. An 18K Gold, glazed movement, beautifully engraved, gilt bar movement, caliber 9721, fine adjusting device, lever escapement, silvered dial with calendar, moon phase and moon age, additional stop-seconds, Breguet steel hands, very rare condition with original papers and original box. The watch is a rarity for IWC collectors.
–
Diameter: 56 mm
–
Weight: 174 g
–
Signed: International Watch Co.  Schaffhausen
–
Some pieces with silver cases have already been offered at auctions, but in gold only very few of these 100 manufactured watches have been seen.