A. LANGE & S?HNE 1815 flyback intermediate wheel chronograph in 18k pink gold, manual winding, reference 401.031, polished, 3-piece construction case, on both sides sapphire glazed, case back 6-times screwed, black, solid silver contrast dial with silver sub- dials, outer pulsometer graduation, pink gold Alpha-hands, fine, rhodium plated movement, 34 jewels, calibre L 951.0, fausses cotes decoration, blued screws, 4 screwed down gold chatons, monometallic balance with Breguet- hairspring, adjusted in 5 positions, swan′s neck regulateur, by hand engraved balance cock, original leather strap with original pink gold 18k buckle, diameter approx. 39,5 mm, original box & papers, sold in June 2006, condition case 2, condition movement 1-2, property of a collector