A. Lange & Söhne Saxonia Datograph Up/Down 405.031 Rose Gold Black Dial (2026)

The Datograph Up/Down 405.031 sets A. Lange & Söhne's landmark chronograph in Rose Gold with a Black dial, a version introduced at SIHH 2015. The Datograph arrived in 1999 as the manufacture's first chronograph, with a flyback function and a minute counter that jumps on the minute, and the Up/Down of 2012 added a power-reserve indicator to it. Alongside the Platinum model, it forms the regular Datograph Up/Down range.

The Black dial of solid silver carries silver subdials for the running seconds and 30-minute counter, Rose Gold hands and markers, and Lange's outsize date at 12 o'clock, its white numerals set in a double window. The power-reserve scale sits at 6 o'clock, and like every Lange movement the chronograph is assembled twice. The 41 mm Rose Gold case is 13.1 mm high, and its sapphire caseback shows the hand-wound flyback movement, on alligator with a Rose Gold buckle.