Audemars Piguet, Royal Oak, ca 2013. Case size: 41 mm Material: steel Movement: automatic, caliber 3120 Year: circa 2013 Crystal: sapphire crystal Bracelet: integrated original bracelet, folding clasp Reference number: 15400ST.OO.1220ST.02 Movement number: 841'354 Case number: I05155-4568 Accompanied by: certificate, box, paper box Service 14 May 2018 Watches have been opened to examine movements therefore no warranties are made that the watches are water-resistant. Potential buyers should inspect each watch to satisfy themselves as to condition. For more information, please read our Conditions of Purchase.