NEW: A. Lange & Sohne Datograph Perpetual
Two decades after its debut, a high-complication classic returns in platinum, pairing formidable mechanics with a discreet flash of diamonds
Twenty years after its debut, the Datograph Perpetual is back with a decidedly more luxurious proposition. A. Lange & Söhne has dressed its celebrated timepiece in platinum from case to bracelet, added baguette-cut diamond hour markers and limited production to just 50 pieces.
The result is a watch that makes a compelling case for understated extravagance, even if 11 diamonds and an all-platinum construction are hardly exercises in restraint.

First introduced in 2006, the Datograph Perpetual brought together a flyback chronograph, a perpetual calendar and Lange’s signature outsize date. The latest iteration retains that mechanical architecture, powered by the manually wound calibre L952.1, comprising 556 components, including 223 dedicated to the calendar mechanism.
The column-wheel chronograph features a precisely jumping minute counter and flyback function for consecutive timings, measuring elapsed time to one-fifth of a second. The perpetual calendar automatically accounts for leap years and varying month lengths, requiring a one-day correction on 1 March 2100, assuming the watch remains running and correctly set. Its moon-phase display, meanwhile, deviates by just one day over 122.6 years of continuous operation.

Visually, the familiar Datograph geometry remains intact. The outsize date sits at 12 o’clock, balanced by two rhodié-coloured sub-dials positioned slightly below the dial’s horizontal axis. Eleven hand-applied baguette diamonds, totalling approximately 0.13 carats, bring a discreet sparkle to the black silver dial without overwhelming its densely packed indications.
At 41mm across and 13.5mm thick, the platinum case is substantial but proportionate to the movement within. The five-row platinum bracelet, with alternating polished and matt surfaces, gives the watch a more assertive presence than earlier leather-strapped versions.

Turn it over and the sapphire caseback reveals the real attraction: a densely layered movement featuring untreated German-silver bridges, a hand-engraved balance cock and an intricate arrangement of levers. The calibre is assembled twice, in keeping with Lange’s exacting standards.

The 36-hour power reserve feels modest by contemporary standards, although practicality was never the principal selling point of a watch this mechanically ambitious.
Ultimately, the appeal lies in the engineering. The precious metals and diamonds may command attention, but the sophistication beneath the dial remains the reason this watch matters.