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RICHARD LANGE JUMPING SECONDS

A big stage for seconds

The jumping seconds mechanism ranks among the classic complications in precision horology. Among other applications, pocket watches equipped with this device in the past were used to determine sidereal or solar time. Ferdinand Adolph Lange developed such a mechanism very early on, in 1867. Ten years later, the newly founded Imperial Patent Office granted him one of its first patents for his invention.

The RICHARD LANGE JUMPING SECONDS has a regulator dial with a large jumping seconds mechanism and subsidiary hour and minute.

With the large seconds circle arranged in the top section, the emphasis in the RICHARD LANGE JUMPING SECONDS is on the smallest of the three units of time. Just below, the smaller minute and hour circle are located, offset to the right and left. Powered by a one-second constant-force escapement, the jumping seconds mechanism advances the blued seconds hand by exactly 60 steps per minute. Thanks to the ZERO-RESET function, the watch can be quickly and conveniently set with one-second accuracy. When the crown is pulled, the seconds hand instantaneously moves to zero and remains there.

Movement L094.1

Number of parts

390

Number of rubies

50

Number of chatons

8

Power reserve

42 hours when fully wound

Oscillator

Frequency: 21600 semi-oscillations per hour

Beat-adjustment system: Screw balance

Movement measures

Diameter: 33.6 mm; height: 6 mm

Movement Movement