1972 18K YG Patek Philippe Calatrava 3537 with Extract from the Archives Papers 15450ST.OO.1256ST.01 but what remains has aged

but what remains has aged to a warm creamy hue and glows brightly when exposed to UV

Excellent black aluminum bezel with some wear

Excellent 78360 bracelet with 13 links

Mint black dial with matching hands

The stainless engine turned bezel is also in excellent condition and shows light wear from use

1972 18K YG Patek Philippe Calatrava 3537 with Extract from the Archives Papers 15450ST.OO.1256ST.01 but what remains has agedCase & Bracelet Excellent 18K yellow gold case that shows light wear from use. Very good black leather band with Patek gold clasp. Dial Excellent blue Sigma dial with gold markers and matching hands. Accessories None The watch is running at COSC spec.