A. LANGE & S?HNE.A VERY FINEAND RARE PLATINUM WRISTWATCH WITH 31 DAY POWER RESERVE, REVOLUTIONARY KEY WINDING MECHANISM, DATEAND HACK FEATURE SIGNEDA. LANGE & S?HNE, MONATS-WERK, GLASHüTTE I/SA, LANGE 31 MODEL, REF. 130.025, MOVEMENT NO. 81’892, CASE NO. 191’790, CIRCA 2012 Movement: Cal. L 034.1, manual, 62 jewels, signed Dial: Signed Case: Glazed display back secured by 6 screws withAperture for winding mechanism, 46 mm. diam., signed Wtih: PlatinumA. Lange & S?hne deployant clasp, Garantie dated 12 February 2012, instruction manual, two keys, leather wallet, presentation boxAnd outer packaging.