
Sharon Chan
Head of department, Director of Watches, Asia
Sold for HK$320,000 inc. premium
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The A. Lange & Söhne Langematik Perpetual reference 310.025 is a pinnacle of German watchmaking, introduced in 2001 as the world's first automatic wristwatch combining a perpetual calendar, outsize date, and zero-reset mechanism. Housed in a 38.5 mm platinum case, its rhodiumed silver dial features Roman numerals, a clear layout for day, month, leap year, and moon-phase displays, and the iconic outsize date at 12 o'clock. Powered by the in-house Caliber L922.1, this automatic movement boasts a 21K gold micro-rotor, 46-hour power reserve, and exquisite hand-finishing, including a hand-engraved balance bridge. The perpetual calendar tracks dates accurately until 2100, with intuitive adjustments via dedicated pushers. Produced until 2017, the reference 310.025 remains a collector's favorite, valued for its technical innovation and timeless elegance.