An Excellent Condition, Very Beautiful & Discontinued 39mm A. Lange & Sohne Datograph with Beautiful Manual Winding Movement, in Pt 950 Platinum with Beautiful Black Dial on Black Alligator Strap & Platinum Tang Buckle. Purchased from A. Lange & Sohne Authorized Dealer in 2009. The Watch Just came back from Alkis at Swiss Watch Repair NY (Official Watchmaker of Lange) in 05.2019 for Complete Services .