This watch is also known as:
5004J-012 , 5004J , 5004J/YG/White .
This Patek Philippe Perpetual Calendar Split-Seconds Chronograph, 5004J, features a 36.7mm case in 18-karat yellow gold, an opaline white dial with applied gold hour markers, and a crocodile strap and gold folding clasp. The Patek Philippe Ref. 5004J watch utilizes a manual-winding movement with these complications: a column-wheel controlled split-seconds chronograph, a perpetual calendar that features day and month in windows and date and leap year via pointer, an AM/PM indicator, and a moon phase indicator. This complex Patek Philippe timepiece is water resistant to 30 meters, and is supplied with solid and exhibition sapphire casebacks.