A. Lange & Söhne Zeitwerk Striking Time Platinum 145.025

Lange introduced the Striking Time in 2011. The striking work shows on the dial: two polished hammers sit either side of the small seconds at 6 o'clock and strike two gongs, the hours in a low tone and the quarter hours in a higher one. Inside is calibre L043.2, and like every Zeitwerk it uses a constant-force escapement that advances the numeral discs once a minute.

The case measures 44.2 by 13.1 mm and takes a 21 mm strap, against 41.9 by 12.6 mm for the platinum Zeitwerk 140.025. The platinum 145.025 has a silver dial with Arabic numerals, while the white gold Striking Time 145.029 has a black dial and was not limited. The Zeitwerk Minute Repeater 147.025, also platinum with a silver dial, uses a thicker 14.1 mm case.