A. Lange & Söhne - 1815 - 730.094F

The A. Lange & Söhne 1815 Tourbillon 730.094F debuted in 2025 as a limited edition of 50 pieces. It is housed in a 39.5mm case of 950 platinum with a thickness of 11.3mm, fitted with sapphire crystals on both front and back. The dial is crafted from solid white gold and finished with a jet-black grand feu enamel surface, with white enamelled Arabic numerals and a peripheral railway-track minute scale. At 6 o’clock, the aperture reveals the one-minute tourbillon with stop-seconds and ZERO-RESET mechanism. The manually wound caliber L102.1 drives this reference. It is composed of 262 parts, including a tourbillon secured by a hand-engraved bridge with a diamond endstone in a screwed gold chaton. The movement measures 32.6mm in diameter and 6.6mm in height, with untreated German silver plates and bridges, four screwed gold chatons, and a hand-engraved seconds bridge. It beats at 21,600 vph, fitted with an in-house manufactured balance spring and screw balance, and offers a power reserve of 72 hours. Functions include hours, minutes, subsidiary seconds, and a one-minute tourbillon with stop-seconds and ZERO-RESET. The watch is completed with a glossy black alligator strap secured by a platinum deployant buckle.