A. Lange and Sohne Zeitwerk 140.029 18K White Gold UPDATED MOVEMENT 2021


A. Lange & Sohne 140.029 Zeitwerk, 140029, 18k white gold with 18k white gold buckle, updated manual wind Lange caliber L043.1 that pre-loads the hour and minute for an instantaneous change, 36-hour power reserve, black dial with innovative digital jumping hour and minute mechanism, power reserve at 12 o'clock, small seconds at 6 o'clock, sapphire crystal, display back, size: 41.9mm, thickness: 12.9mm. Like new with Lange box and papers dated 2021.

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More about Zeitwerk 140.029 18K White Gold UPDATED MOVEMENT 2021

This is an 18K white gold A. Lange & Sohne Zeitwerk 140.029. It includes an alligator leather strap with an 18K white gold buckle and scratch resistant sapphire crystals. It has a large signed pull out winding crown at 2 o'clock and an exhibition sapphire display crystal case back secured with 6 screws engraved with "A. LANGE & SOHNE – GLASHUTTE SA," hallmarks and a serial number. The 41.9 mm diameter, solid three-body case, angled convex bezel, and curved lugs, are brushed/polished. The dial is black with a large white 72-hour up/down arched power reserve dial at 12 o'clock, and a large 18K white gold "gasket that includes a large black recessed circular small constant running seconds subsidiary dial at 6 o'clock with white Arabic numerals, a railway-style second scale, and a white gold sword indicator hand with an open-worked diamond-shaped counterbalance. Unique twin rectangular digital jumping hour and minute deeply beveled aperture windows with large black fonts are inside the two "wings" of the gasket at the 9 o'clock and 3 o'clock positions. It's water resistant to 30 meters/100 feet and the 12.6 mm thick case, dial, and movement are all signed. This A. Lange & Sohne Zeitwerk 140.029 has a manual winding A.Lange & Sohne Caliber L043.1 movement that's rhodium-plated with Cotes de Geneve embellishment. It's constructed with 68 jewels a shock absorber mechanism, a constant-force escapement, and a a shock-resistant screw balance. It has a precision beat-adjustment system with a lateral setscrew and a whiplash spring, and it includes and a monometallic balance spring that adjusts to 5 positions, a balance wheel with opposing weights, blued screws, and the mechanism oscillates with a frequency of 18,000 vph. The A. Lange & Sohne Zeitwerk 140.029 debuted in 2009 and was the world’s first mechanical wristwatch with jumping numeral displays.

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