A. Lange and Sohne 1815 Chronograph 414.026 18K White Gold BOUTIQUE

More about 1815 Chronograph 414.026 18K White Gold BOUTIQUE

This is an 18k white gold A. Lange & Sohne 1815 414.026. It has an alligator leather strap with a white gold ALS tang buckle, and a domed scratch resistant sapphire crystal with anti-reflective coating inside. It has rectangular chronograph push buttons, an 18k white gold winding crown, and an exhibition domed sapphire display case back secured with 6 screws. It's engraved around the perimeter of the case back with "A. LANGE & SOHNE , GLASHUTTE SA," and 4 hallmarks. The 39.5mm diameter solid three-body case, curved lugs, and rounded bezel, are polished/brushed. The dial is silver with blue painted Arabic numeral hour markers, rhodium plated white gold sword hands, and a center sweep chronograph hand with a diamond-shaped skeletonized counter balance. There is a blue outer minute/one-fifth second track, and around the perimeter is a blue pulsometer scale up to 200 BPM and graduated for 30 pulsations. There are twin silver recessed subsidiary dials with blue numerals and railroad-style scales, including a running small seconds register at 8 o'clock, and a 30-minute chronograph totalizer is at 4 o'clock. It has a 60-hour power reserve at full wind, and it's water resistant to 25 meters/82 feet. The 10.8mm thick case, dial, and movement are all signed. This A. Lange & Sohne 1815 414.026 has a mechanical manual winding A. Lange & Sohne caliber L951.5 movement. The plates and bridges are made of untreated German silver, with Cotes de Geneve embellishment, and a balance cock that's hand engraved. It's constructed with 34 jewels (including 4 in screwed gold chatons, 306 components, blued screws, and a Kif shock absorber device. It includes a monometallic balance that's adjusted to 5 positions, a straight-line lever escapement, and a shock-resistant balance wheel with eccentric poising weights. The balance spring vibrates at a frequency of 18,000 vph (2.5 Hz), and there is a precision beat-adjustment system with a lateral setscrew and a whiplash spring. The A. Lange & Sohne 1815 414.026 Chronograph Boutique limited edition was launched in 2015 to commemorate the 200th birthday of F. A. Lange.

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