A. Lange & Söhne Datograph Perpetual Platinum Watch
A. Lange & Söhne's Datograph Perpetual, the brand's first wristwatch to combine a chronograph, perpetual calendar and outsize date when it debuted in 2006, returns with a 950 platinum case and five-row bracelet. The black dial carries eleven baguette-cut diamond hour markers, with the 4 and 8 o'clock markers left out to make room for rhodium-colored subdials. The hand-wound L952.1 caliber has 556 parts, 223 of them in the calendar, and a column-wheel flyback chronograph that measures to one-fifth of a second, visible through the sapphire caseback. Production is limited to 50 pieces.

