A. Lange & Sohne. A very fine PT 950 platinum flyback chronograph manual wind watch with big date
Datograph Flyback, Model No. 403.305F, Case No. 176759, Movement no. 72804, Circa 2009
40-jewel, Cal. L 951.1, manual wind rhodium plated movement, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating balance spring, black dial with applied Roman numerals hour indexes, subsidiary silver dials for seconds and 30-minute register, big date aperture at 12, outer chapter ring register for tachometer graduation, luminous white spade minute and hour hands, polished and brushed PT 950 platinum case with sapphire crystal, display case back held by 6 screws, chronograph buttons on the band, date change button at 10, dark blue leather strap with PT 950 platinum original buckle, together with original box and certificate, case, dial and movement signed 39mm.