A. Lange and Sohne Lange 1 110.029 White Gold Mother of Pearl Dial / Deployant RARE

More about Lange 1 110.029 White Gold Mother of Pearl Dial / Deployant RARE

This is an 18k white gold A. Lange & Sohne Lange 1 110.029. It has a leather strap with a white gold ALS tang buckle, and a scratch resistant sapphire crystal. It has an exhibition sapphire display case back secured with 6 screws, and engraved around the perimeter with "A. LANGE & SOHNE – GLASHUTTE SA.," a serial number and various hallmarks. It has a pull out winding crown, and the 38.5mm diameter solid three-body case, curved straight lugs, and angled bezel are polished. There is a rectangular pushbutton at 10 o'clock for adjusting the date. The mother-of-pearl dial has an off-center hour dial with applied white gold radial Roman numeral hour markers at the quarter hours, diamond-shaped indices, and white gold alpha hands. There is a running seconds subsidiary dial at the 5 o'clock position, and a big date aperture window is at 2 o'clock. Between 2 and 4 o'clock is a 72-hour up-down power reserve arc. It's water resistant and the 10mm thick case, dial, and movement are all signed. This A. Lange & Sohne Lange 1 110.029 has a mechanical manual winding A. Lange & Sohne caliber L901.4 movement. It's nickel silver with cotes de Geneve embellishment and a hand-engraved balance bridge. It's constructed with 53 jewels including 9 in screw-mounted gold chatons. It has double barrels mounted in series, a straight-line lever escapement, and a shock absorber device. It includes a monometallic balance that's adjusted to 5 positions, a self-compensating flat balance spring, a swan neck micrometer regulator, and a balance wheel with eccentric poising weights. The mechanism oscillates at a frequency of 21,600 vph (3Hz), and it has a beat adjustment system with a lateral setscrew and a whiplash spring. The A. Lange & Sohne Lange 1 110.029 was first presented in 1994.

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