RATCHET WHEEL PART NUMBER 415 FOR PATEK PHILIPPE CALIBRE 12-120. OTHER PARTS AVAILABLE FOR THIS AND OTHER PP CALIBRES. PLEASE FEEL WELCOME TO MAKE AN ENQUIRY AS TO THE PART YOU NEED FOR PATEK OR ANY OTHER BRAND OF OLDER SWISS MOVEMENT’S. PLEASE INCLUDE BRAND, CALIBRE AND PART NUMBER IS POSSIBLE THANKS. IF YOU HAVE…