Patek Philippe, wrist watch

with annual calendar in 18kt yellow gold, round case of mm. 37, sapphire crystal, black dial with Roman numerals and three auxiliary dials for days, months and seconds, dated 6 o'clock skeletal movement automatic winding, no. 3135087/4178435, caliber 315 S QA 24h, original leather strap with 18kt yellow gold buckle, out of production Complete with box and warranty