Important Modern & Vintage Timepieces

New York, Sep 30, 2014

LOT 178

LANGE REF. 401.031 MEDICAL 1815 FLYBACK CHRONOGRAPH PINK GOLD A. Lange & Söhne, Glashütte i. SA., "1815 Chronograph," No. 45988, case No. 155947, Ref. 401.031. Production of this reference started in 2004. Very fine and rare, 18K pink gold wristwatch with square button fly-back chronograph, register, pulsometer and an 18K pink gold A. Lange & Söhne buckle. Accompanied by a box.

Three-body, solid, polished, rounded bezel, transparent case back with 6 screws, sapphire crystals. Black, made from solid sterling silver with painted white Arabic numerals, subsidiary silver dials for the 60-second and 30-minute registers, outer pulsometer graduation. Pink gold alpha hands. Cal. L 951.0, Glashütte 3/4 plate, maillechort, fausses côtes decoration, 34 jewels including 4 in screw-mounted gold châtons, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating Breguet balance spring, swan-neck micrometer regulator, hand-engraved balance bridge.