Important Modern & Vintage Timepieces

Hong Kong, Jun 22, 2013

LOT 150

LANGE & SÖHNE TOURBOGRAPH POUR LE MÉRITE LIMITED EDITION PLATINUM A. Lange & Söhne, Glashütte I/SA., ?Tourbograph Pour le Mérite,? movement No. 40073, No. 35/51, case No. 150035, Ref. 702.025F. Made in a limited edition of 51 pieces in 2007. Extremely fine and equally rare, platinum wristwatch with visible one-minute tourbillon regulator, split second chronograph, registers, 36-hour power reserve and an platinum A. Lange & Söhne deployant clasp. Accompanied by a fitted box, guarantee, instruction booklet, Tourbograph book and magnifying glass.

C. Three-body, solid, polished and brushed, curved straight lugs, transparent case back with 6 screws, sapphire crystals.
D. Solid satiné silver with painted Arabic numerals, sunk subsidiary guilloché dials for the 30-minute registers and the up and down indication, outer minute track, outer most 1/5th of a second divisions, aperture with polished steel bridge for viewing the tourbillon. Blued steel Alpha hands.
M. Cal. L 903.0, Glashütte 3/4 plate, maillechort, fausses cotes decoration, 41 ruby jewels including 5 in screw-mounted gold chatons, power equalization with chain and fusée maintaining power and stepped planetary gearing, tourbillon cage bearing 2 diamond endstones, lateral lever escapement with one-minute tourbillon regulator with equidistant polished steel three-arm carriage, Glucydur balance with screws adjusted to 5 positions, Nivarox balance-spring with Strasser overcoil, shock-absorber, self-compensating Breguet balance-spring, hand engraved balance bridge. Dial, case and movement signed. Diam. 41.2 mm. Thickness 15 mm.