A. Lange & Söhne Richard Lange

Lange's 'scientific' line, built around precision and legibility. Named after Richard Lange, the founder's eldest son and a gifted watchmaker and metallurgist, this sub-line takes its cue from observation watches: clean silver dials, slim Roman numerals, and layouts made to be read at a glance. It's home to some of the maison's most impressive pieces, the regulator-dial Jumping Seconds with its true deadbeat seconds, the fusee-and-chain Pour le Merite, and a perpetual-calendar Terraluna. Not the flashiest Lange, but arguably the most serious about accuracy.