Ref. No./Code: 5940J-001 Brand: Patek Philippe Gender: Men's watch/Unisex Diameter (mm): 37x44.6 Condition: 1 (Excellent) Type of mechanism: Automatic Dial: Silver Glass: Sapphire glass Functions: Perpetual Calendar, Date, Moon Phase Indicator Model: Perpetual Calendar 5940 Availability: Available now Color of bracelet: Brown Clasp: Clasp with a spike Dial numerals: Arabic numerals Caliber / Mechanism: 240 Q Reserve de marche: 48 hours Other: Transparent back cover, Chronometer