Brand new Patek Philippe Perpetual Calendar Moonphase gent's watch, Model # 5940J-001. 18kt yellow gold 37mm x 45mm case with crocodile leather strap and 18k yellow gold pin buckle. Automatic movement, Claiber 240 Q Seal. Cream dial with gold Arabic numeral hour markers. Hours, minutes, date, day, month, moonphase and leap year. Interchangeable 18k yellow gold full case back and sapphire-crystal case back. Power reserve up to 48 hours. Perpetual calendar

　　watch will correctly adjust for short and long months as well as 28/29 days of February once every 4 years. (Patek Philippe offers a wide variety of color in leather straps, usually black or brown.)

　　subject to availability