A. Lange & Söhne mens Replica blew away many replica watch connoisseurs at this year’s SIHH with its undisputed headliner, the Datograph Perpetual Tourbillon. But the Saxon haute horlogerie brand also rolled out a notable timepiece at the fair whose mechanical complexity comes in a slightly more understated but no less impressive package: the Richard Lange Jumping Seconds.
The newest model in the A. Lange & Söhne Richard Lange Replia collection — introduced in 2006 and renowned for adding new, innovative facets to the classical scientific observation replica watch — the A. Lange & Söhne Richard Lange Jumping Seconds combines two complementary mechanisms: a one-second constant force escapement and an integrated jumping seconds function that displays the precise time in crisp, one-second intervals. Designed for optimal legibility as well as topnotch timekeeping precision, the replica watch features a large, blued steel central seconds hand that advances in exactly 60 steps per minute. A zero-reset mechanism, equipped with a multi-disk clutch, ensures quick and easy synchronization. The wearer simply pulls out the crown to send this seconds hand immediately to the zero position.
This mechanism, exceedingly rare in modern mechanical wristreplica watches, has its roots in classical horology: pocketreplica watches equipped with this function were used to determine measurements such as sidereal (solar) time and geographical longitude. Brand namesake Ferdinand Adolphe Lange developed an early version of this type of movement in 1867 and received a patent for it 10 years later.
The regulator-style dial (another nod to the history of chronometry, hearkening to the large central clocks with hours, minutes, and seconds on separate subdials that were used to “regulate” the time on replica watches) is made of solid, rhodium-colored silver. The overlapping subdials for the hours and minutes are shifted to the left and right, respectively, beneath the dominant seconds subdial. The dial’s other notable element is its power reserve indicator, a triangular window nestled above 6 o’clock inside the intersection of the hours and minutes subdial and just beneath the seconds subdial. When the replica watch’s movement is reaching the end of its 42-hour power reserve — 10 hours before it is depleted, to be precise — a red marker appears in the window (as seen below), gently reminding the wearer to rewind the replica watch.
The case is made of platinum and measures 39.9 mm in diameter and 10.6 mm thick. The sapphire crystals, one covering the dial and the other allowing a view of the movement from the caseback, rate a 9 on the Mohs hardness scale.