Accurate to the Second: Richard Lange Jumping Seconds

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The Richard Lange Jumping Seconds A. Lange & Söhne introduced earlier this year at the SIHH, is probably the most exact watch the manufacturer has in its program. And not only that: the watch has a perfectly moderate size and a very good legibility. The Richard Lange Jumping Seconds comes in the infamous Lange design, which emphasizes the mechanics and functions this watch features.
According to A. Lange & Söhne, the Richard Lange Jumping Seconds is a “scientific observation watch”, and the manufacturer has done everything to make it as accurate as possible. But this timepiece will not be available for everyone: First of all the Richard Lange Jumping Seconds is a limited edition and not as affordable as many of you (and us, clearly) might wish it would be.

a-lange-sohne-richard-lange-jumping-seconds-3The jumping seconds mechanism ranks among the classic complications in precision horology. Pocket watches featuring this technology were once used to determine sidereal or solar time as well as geographical longitude. But even in short-time measurements today it is convenient to be able to read the time in full seconds.

In this wristwatch A. Lange & Söhne is pairing the quest for utmost precision with outstanding legibility.
Two mechanisms are : The one-second constant-force escapement ensures ultimate precision. The jumping mechanism guarantees crisp legibility of the time; it advances the large seconds hand by exactly 60 steps per minute. And thanks to the zero-reset mechanism the watch can be synchronised quickly and comfortably – when the crown is pulled, the seconds hand jumps to the zero position.
The rhodié-colored regulator dial with ist large seconds circle at the top draws the wearer’s attention to the smallest of the three units of time. The smaller hour and minute circles arranged beneath it are shifted to the left and right.

The power reserve indicator is placed inside a triangular aperture in the dial where the hour and minute circles intersect. Ten hours before the power runs out, the indicator turns red and reminds the owner to rewind his watch.

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A. Lange & Söhne has its Richard Lange Jumping Seconds equipped with a 39,9 mm platinum case which complements the beautifully sober dial.
Inside works the new L094.1 manufacture calibre. It stands out with an ingenious arrangement that distributes constant-force generation and the seconds jump to two wheel trains, but also allows them to interact. The result is a constant amplitude across the entire power-reserve range of up to 42 hours. The mainspring barrel powers the jumping mechanism via the second wheel train. Its task is to convert the balance frequency of six semi-oscillations per second into one single step of the seconds hand.
The 390-part, manually wound movement is lavishly decorated and polished and can be admired through the sapphire crystal case back.

This beautiful and elegant timepiece by A. Lange & Söhne is a Limited Edition featuring 100 pieces.

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