AUDEMARS PIGUET ROYAL OAK. REF. 15400ST.OO.1220ST.02. SOLD IN 2017 Steel bracelet watch. Case: tonneau, brushed steel bezel and caseback, polished edges and obliques, octagonal screw-down bezel. Screw-down sapphire caseback. Dial: white/silver, 'grande tapisserie' motif, AP logo at noon, applied baton hour-markers and luminescent hands, date window. Movement: automatic, cal. 3120, 40 jewels Strap: steel, ref. 1220, folding clasp, signed. Dial, case and movement signed. Numbered 15457. Diameter: 41 mm With: purchase invoice (Le Brassus).