Important Collectors’ Wristwatches, P...

New York - The Fuller Building, Dec 07, 2006

LOT 390

"Langematik Perpetual" A. Lange & Söhne, Glashütte i. Sa., "Sax - O - Mat", No. 36709, case No. 146753, Ref. 310.025. Production of this reference started in 2001. Very fine and rare, astronomic, self-winding, platinum gentleman's wristwatch with perpetual calendar, moon phases, oversized date and a platinum A. Lange & Söhne buckle. Accompanied by a special fitted winding box and a certificate.

C. Three-body, solid, polished and brushed, rounded bezel, transparent case back with 6 screws, push button on the band to correct the date, sapphire crystals. D. Satiné solid silver with applied radial white gold Roman numerals, subsidiary dials for the days of the week, the months, the leap year, the 24-hours with day/night indication and the seconds, apertures for the oversized date at 12 and the moon phases at 6. Luminous white gold "alpha" hands. M. Cal. L922.1 ("Sax-O-Mat" with zero reset feature), maillechort, "fausses côtes " decoration, 43 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, "swan-neck" micrometer regulator, 21K gold microrotor with platinum segment, hand-engraved balance bridge. Dial, case and movement signed. Diam. 38 mm. Thickness 10 mm.