A. Lange & Söhne Richard Lange Jumping Seconds 252.029 White Gold Black Dial (2026)

The Richard Lange Jumping Seconds puts the smallest unit of time at the top of the dial, and the 252.029 in White Gold with a Black dial is the version A. Lange & Söhne added to the collection in 2019. First shown in 2016, the model unites three mechanisms: a constant-force escapement, a seconds hand that advances in single one-second jumps, and Lange's ZERO-RESET, which returns the seconds to zero when the crown is pulled.

The 39.9 mm White Gold case frames a Black dial of solid silver laid out as three intersecting circles, a regulator arrangement taken from chronometer No. 93 by the late-18th-century watchmaker Johann Heinrich Seyffert. Seconds occupy the large upper circle, with hours and minutes in the two below. A small triangle between them turns red as the reserve runs low, and the watch is worn on a black alligator strap with a White Gold prong buckle.