A. Lange & Söhne. A very fine, rare, large and heavy platinum Double Split Flyback Chronograph Wristwatch with Power ReserveSigned A. Lange & Söhne, Glashütte I/SA, Double Split Flyback model, ref. 404.035, movement no. 55'013, case no. 163'875, manufactured in 2008Cal. L001.1 mechanical movement, 40 jewels, screwed gold chatons, finely hand-engraved balance bridge, swan neck regulator, black matte dial, applied Roman, baton and square numerals with luminous accents, luminous hands, outer five minute divisions and recessed tachymetre scale, power reserve display, two engine-turned silvered subsidiary dials indicating constant seconds and double 30 minutes register, large and heavy circular case, glazed display back secured by six screws, three rectangular chronograph buttons in the band, platinum Lange buckle, case, dial and movement signed43 mm. diam.