Patek Philippe 18k white & yellow gold with bronze and chalcopyrite butterfly wing (1973)

Case is 22.5mm wide, 18k white and yellow gold. Dial is cobalt blue. Movement is manual. With: 18k gold Patek Philippe integrated bracelet, overall length approximately 170 mm., Extract from the Archives confirming production of the present watch with yellow gold bracelet with white gold bracelet plates decorated with bronze and chalcopyrite in 1971 and its subsequent sale on 31 January 1973. Remark: Very rare and unusual, manufactured in 1971. Estimate CHF 12,000 – CHF 18,000. Sold for CHF 53,340 at Christies Auction 12 May 2026 Geneva.