Patek Philippe Grand Complications Perpetual Calendar (3940J022) self – winding automatic watch, features a 36mm 18k yellow gold case surrounding a white dial on a brand new black alligator strap with an 18k yellow gold Calatrava Cross deployant buckle. Functions include hours, minutes, day, date, month and moon phase. This watch has been serviced, comes with the Service seal and the original box and manual. Time remaining on the Manufacturer’s service warranty!