A Closer Look: A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar Lumen
The A. Lange & Söhne Lange 1 Tourbillon Perpetual Calendar “Lumen” is a limited‑edition platinum watch that combines a tourbillon with stop‑seconds, an instantaneous perpetual calendar, a big date, a retrograde day‑of‑week, a peripheral month ring, and a luminous moon‑phase display with integrated day/night indication. Its semi‑transparent sapphire dial, treated with a titanium‑oxide coating, appears dark in daylight while allowing ultraviolet light to charge the luminous elements, creating a striking glow at night. The watch measures 41.9 mm in diameter, 13 mm thick, and weighs heavily due to the platinum case and 18‑karat white‑gold rotor, emphasizing both presence and craftsmanship. Priced at €530,000, only 50 pieces were produced and quickly sold out. The movement, calibre L225.1, features a 50‑hour power reserve, a 3 Hz frequency, and intricate finishing on both steel cocks and German‑silver bridges, showcasing exceptional anglage. The strap is hand‑stitched black alligator leather, completing a piece that blends technical innovation with the brand’s iconic aesthetic, offering a dramatic visual transformation from day to night.
Buying Time Analysis: This story is significant because it showcases A. Lange & Söhne’s cutting‑edge engineering and artistic mastery in the Lange 1 Tourbillon Perpetual Calendar “Lumen,” highlighting the brand’s innovation, limited‑edition exclusivity, and the watch’s profound impact on haute horology.
