Patek Philippe Calatrava 1578GM

PATEK PHILIPPE, FOR GENERAL MOTORS, VERY RARE LIMITED EDITION YELLOW GOLD 'CALATRAVA', WITH BLACK DIAL AND 'POINTED' HOURS OUTER TRACK, REF. 1578GM

CIRCA: 1960s MOVEMENT NO: 731'361 CASE NO: 2'625'781 CASE MATERIAL: Yellow gold CASE DIAMETER: 35 mm. DIAL: Black, with "pointed" hours outer track MOVEMENT: Manual BOX: No PAPERS: No REMARK: Limited to 20 examples, produced for General Motors Executives