Patek Philippe Grand Complications Perpetual Calendar (3940R001) self – winding automatic watch, features a 36mm 18k rose gold case surrounding a silver dial on a brand new black alligator strap with an 18k rose gold Calatrava Cross deployant buckle. Functions include hours, minutes, seconds, date, day, month, moon phase and GMT. This watch has been serviced, comes with the Service seal and with the original box. Time remaining on the Manufacturer’s service warranty!