A Lange & Sohne
Datograph Perpetual Tourbillon
The latest masterpiece from this Saxony manufacture pairs three complications with five supplementary functions. The datograph designates a column-wheel chronograph with a precisely jumping minute counter, a flyback function and the typical Lange outsize date. The Perpetual, the middle element of the watch’s name, refers to an instantaneously jumping perpetual calendar with a moon-phase display. All indications of the perpetual calendar switch instantaneously and provide unambiguous readings. As for the tourbillon mechanism, for the first time in a Lange tourbillon with chronograph, the balance beats at a rate of 18,000 instead of the conventional 21,600 semi-oscillations per hour. Consequently, stopped times can be displayed with an accuracy of one-fifth of a second. The black solid-silver dial of the new model contrasts beautifully against the 41.5mm platinum case. Production is limited to 100 watches.