Did you know that Patek Philippe invented the worlds first Annual Calendar wristwatch? This 18ct yellow gold 5036 model followed on from the 5035 with the addition of a moonphase at 6 o'clock, comes on its original factory fitted solid gold bracelet and is in superb condition. With a sapphire crystal case-back to show off the technically ground-breaking 315 S IRM QA LU movement beautifully and a clean crisp luminous dial ensuring exceptional legibility. Complete with its original Patek box, papers and stylus from 2000 and covered by our 2 year warranty.