A. Lange and Sohne 1815 Tourbillon 730.025 Platinum LIMITED
A. Lange & Sohne 730.025F 1815 Tourbillon 730025, limited to 100 total pieces, platinum on a strap with a platinum deployant buckle, manual wind Lange caliber L102.1 movement, 72-hour power reserve, silver dial with blued steel hands and black Arabic numeral hour markers, exposed 60 second tourbillon with blued steel seconds hand at 6 o'clock, hacking zero-reset function, sapphire crystal, water resistant, display back, diameter: 39.5mm, thickness: 11.1mm. Like New with Lange box and papers which are dated June of 2016.
More about 1815 Tourbillon 730.025 Platinum LIMITED
This is a platinum A. Lange & Sohne 1815 Tourbillon 730.025F. It has an alligator leather strap with a platinum deployant buckle, and a scratch resistant sapphire crystal. It has a pull out winding crown, and an exhibition sapphire display case back secured with 6 screws, engraved with "A. LANGE & SOHNE – GLASHUTTE SA," hallmarks, and a serial number. The 39.5mm solid three-body case, curved lugs, and convex bezel, are all polished. The dial is solid silver with blued Arabic numeral hour markers, and blued steel sword hands around a perimeter railway-style minute scale. It includes a 60-second tourbillon at the 6 o'clock position, with a blued steel hand that also acts as a seconds hand. The tourbillon is stopped for precision time setting when the crown is pulled out via a V-shaped arresting spring that stops the balance wheel inside the rotating tourbillon cage (introduced by Lange in 2008). It's water resistant to 30 meters/100 feet, it has a 50-hour power reserve, and the 11.1mm thick case, dial, and movement are all signed. This A. Lange & Sohne 1815 Tourbillon 730.025F has a mechanical manually wound A. Lange & Sohne Caliber L102.1 movement. It's rhodium plated with Cotes de Geneve striped/ribbed embellishment on the ¾ back plate, and it's constructed with 21 jewels, 426 components, and an anti-shock device. The balance-cock is hand engraved so that each example is unique, and it has polished beveled edges, blued screws, and a swan neck index regulator. It includes a hacking zero reset mechanism for precision time setting, and the movement oscillates at a frequency of 21,600 vph (3 Hz). This A. Lange & Sohne 1815 Tourbillon 730.025F was introduced in 2014.
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