A. Lange & Söhne 405.028 Datograph Up / Down 18K White Gold Blue Dial 2025 LIMITED

This A. Lange and Sohne Datograph Up / Down reference 405.028 is a limited edition of 125 pieces marking the model’s twenty-fifth anniversary, a rare occasion on which Lange has made the Datograph as a limited edition at all. Few modern chronographs altered the terms of the conversation so completely, and for a collector choosing among later Datographs this is the commemorative issue that ties the line back to its turning point. Its manual-wind caliber L951.6 drives the chronograph and outsized date while preserving the architecture that made the Datograph the standard against which modern chronographs are still judged. Lange also folded in the Up / Down power reserve display, a practical addition that never disturbs the balance of the layout. In 18k white gold, the case measures 41mm across and 13.1mm thick, giving the watch the compact density that suits the Datograph so well. The blue dial, in solid silver, sets this edition apart at a glance, since the standard Up / Down is made only in platinum and pink gold with black dials. More than an anniversary variant, it shows how completely the original Datograph reshaped expectations for the manual chronograph.