Condition Mint (9/10) Model 15510ST.OO.1320ST.10 Series Royal Oak Functions Hours, minutes, seconds, date Dial Colour Grey Mega Tapisserie Hands Luminous Markers Index Case Material Steel Case Diameter 41mm Crystal Sapphire Band/Strap Steel bracelet Clasp Deployant Movement Automatic Caliber AP 4302 Power Reserve 70 hours Water Resistance 50M Box/Papers Yes (2024). ABOUT THIS BRAND The Manufacture was established in 1875 in Le Brassus, a village at the heart of La Vallée-de-Joux in the Swiss Jura, by Jules-Louis Audemars and Edward-Auguste Piguet, two enterprising young men who combined their talent to develop and produce watches featuring rare complications. Already in these early days, an Audemars-Piguet watch was prized by admirers of fine mechanical timepieces. Through determination, imagination and discipline, they inscribed their name on the wider history of watchmaking. The company they established has never left the hands of the founding families.