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On October 24, 1994, a little more than four years after Walter Lange relaunched the family name, A. Lange & Söhne presented its first four wristwatches of the reborn era in Dresden: the Lange 1, the Tourbillon “Pour le Mérite,” the Saxonia and the Arkade. Thirty-two years later, on the same date, the manufacture has introduced a watch that could hardly be a more fitting tribute to everything that followed: a Datograph Perpetual in 950 platinum, on a platinum bracelet, limited to 50 pieces.
It is worth saying plainly what is going on here. What the new Datograph Perpetual adds is a different tone: a black dial set with baguette-cut diamonds, and a bracelet in the same metal as the case. At Lange, where the vocabulary changes slowly and deliberately, that counts as an event.
Twenty years of a very difficult idea
The Datograph arrived in 1999 with the manually wound caliber L951.1. It was one of the few genuinely new chronograph movements the industry had produced since the quartz crisis. Seven years later, the Datograph Perpetual did something no Lange wristwatch had done before. It put a flyback chronograph and a perpetual calendar into one case, and it kept the brand’s outsize date at the top of the dial.
This is harder than it sounds. A chronograph and a perpetual calendar are each demanding on their own, and the manufacture itself concedes that the difficulty grows sharply when both live in one watch and have to be adjusted in harmony. The Datograph Perpetual has been its answer for twenty years. It is not the thinnest or the flashiest, but it may be the most intellectually satisfying.
An anniversary within an anniversary
The new release connects two milestones - the modern house’s public return and two decades of the Datograph Perpetual. The mechanical lineage begins with the original Datograph of 1999. At a time when proprietary high-end chronograph movements were considerably less commonplace, its manually wound caliber L951.1 helped establish Lange’s credibility beyond the distinctive design of the Lange 1.
In 2006, the Datograph Perpetual extended that proposition, becoming Lange’s first wristwatch to combine a chronograph, perpetual calendar and outsize date. Twenty years later, the anniversary edition preserves that mechanical foundation. This is a new interpretation of a well-established watch.
Why the bracelet matters
For collectors, the bracelet revives a particularly evocative chapter of Lange history and restores the possibility to the contemporary commercial collection beyond the Odysseus. The new bracelet is not a reproduction of the earlier designs. It’s constructed in five rows rather than the seven-row configurations associated with many historical examples. Case, bracelet and deployant buckle are all 950 platinum.
There is contemporary engineering beneath the finishing. Screwless links use a push-button release system related to that employed on the Odysseus. The clasp, however, prioritizes a discreet profile over adjustability: it provides no micro adjustment. That is a meaningful limitation on a substantial precious-metal watch, where a precise fit matters.
At 41mm across and 13.5mm thick, the case retains the Datograph Perpetual’s established proportions.
A dial of restrained brilliance
The black dial introduces another fist for the standard Datograph Perpetual, whose previous executions used silver-toned or grey dials. Made from 925 silver, it provides a strong contrast to the rhodium-colored subsidiary displays and an unusually effective setting for diamond indices.
Those diamonds total approximately 0.13 carats and their elongated shapes preserve the visual discipline of conventional baton markers. Here, preciousness follows the dial’s architecture rather than competing with it. The hour and minute hands, along with the day, month and leap-year hands, are 750 gold. The chronograph minute counter and subsidiary seconds hand are blued steel, and the chronograph seconds hand is rhodium-plated steel.
The movement
Inside is the manually wound caliber L952.1: 556 components, including 223 for the calendar mechanism alone, with 45 jewels and four screwed gold chatons. It operates at 18,000 semi-oscillations per hour, supporting chronograph readings in one-fifth-of-a-second increments.
The chronograph combines column-wheel control with a horizontal clutch and flyback capability. The perpetual calendar, correctly set and kept running, requires a one-day calendar correction on March 1, 2100, when the Gregorian calendar omits the leap day. The moon-phase mechanism accumulates a discrepancy of one day only after 122.6 years of continuous operation. Long-range sophistication does not make the watch self-sufficient. Its 36-hour power reserve is modest, particularly for a manually wound perpetual calendar.
The caliber’s finishing is of the signature standard that we’ve become accustomed to from the watchmaker. This movement offers incredible depth and complexity and as always with Lange, very few perpetual calendar chronograph calibers come close.
A familiar mechanism, a different presence
The defining word here is continuity. Lange has not used the anniversary to claim a technical reinvention. It has retained an extraordinary movement and reconsidered how the watch inhabits the wrist. A limited edition of 50 pieces, its significance, however, extends beyond scarcity: the bracelet reconnects Lange’s contemporary complicated watchmaking with a neglected part of its own design history.
The result is a more assertive expression of the same underlying idea: that mechanical sophistication, visual order and material extravagance can coexist - provided someone remains sufficiently disciplined about all three.
