Lange marks the Datograph Perpetual anniversary in platinum
Lange revisits its first chronograph perpetual calendar wristwatch with a 50-piece platinum edition, now with baguette diamond hour markers on a black dial.
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What's new
- Reference 410.136E in 950 platinum, limited to 50 pieces
- Eleven baguette-cut diamond hour markers on a black dial, a first for this model
- Five-row platinum bracelet with deployant buckle, returning from the 2006 original, with squarer links closer to the Odysseus design
A. Lange & Söhne is marking two decades of the Datograph Perpetual with a new limited edition, Reference 410.136E, made in 950 platinum in just 50 pieces.
The Datograph Perpetual arrived in 2006 as the first Lange wristwatch to bring a chronograph together with a perpetual calendar and an outsize date. This anniversary version brings back the platinum case and bracelet of that original model, which was discontinued in 2011. The case measures 41.0 mm across and 13.5 mm high.
The dial is black, with rhodié auxiliary counters. Its hour markers are eleven baguette-cut diamonds, set by hand, with a pair at 12 o'clock and none at 4 and 8 o'clock. Together they weigh about 0.13 carats.
The five-row platinum bracelet alternates polished and satin-brushed surfaces and closes with a double-folding deployant buckle engraved with the brand logo. Its new links are squarer, closer to the Odysseus design.
Inside is Calibre L952.1, a manually wound movement with 556 parts, 223 of them in the calendar mechanism. It is assembled twice by hand. It beats at 18,000 semi-oscillations per hour, or 2.5 Hz, and stores 36 hours of power. The column-wheel flyback chronograph measures to one fifth of a second and has a precisely jumping minute counter. The twin-counter layout stays, with the day at 4 o'clock and the month at 8 o'clock, while the moon phase sits at 6 o'clock.
Three recessed correctors set the day, month and moon-phase disc separately. A rapid-correction pusher at 10 o'clock moves all calendar indications together; it works only with the crown pulled out and is disabled between 10 p.m. and 2 a.m. The calendar will need a one-day correction on 1 March 2100, and the moon-phase display deviates from a true lunation by one day after 122.6 years.