Patek Philippe Aquanaut Luce Annual Calendar 5261R 39.9MM Blue-Gray Dial With Composite Rubber Strap Model – Patek Philippe AquanautLuce Annual CalendarReference Number – 5261R-001Movement – AutomaticBezel –18KRose GoldDial –Blue-GrayDialCase Size –39.9mmCrystal – Scratch-resistant Sapphire Crystal Bracelet –Blue-Gray Composite StrapWater Resistant – 12 ATMGender – Men's