A. Lange & Söhne Grand Lange 1 Moon Phase "Lumen"

The A. Lange & Söhne Grand Lange 1 Moon Phase "Lumen", reference 139.035F, is a limited edition of 200 pieces in 950 platinum. Introduced in 2016, the watch has a 41 mm case measuring 9.5 mm high. The black dial is made of solid silver with semi-transparent sapphire crystal segments. An outsize date, moon-phase display and power-reserve indicator appear on the dial. The case has a see-through back and a 30 metre water-resistance rating. Manual-winding calibre L095.3 comprises 446 parts and provides a 72-hour power reserve at 21,600 semi-oscillations per hour. A black alligator leather strap closes with a platinum folding clasp. The hands are made of rhodiumed gold and are luminous.