Saturday, November 26, 2016

A. Lange & Söhne Begins the Dispatch of its Datograph Perpetual Tourbillon & Richard Lange Jumping Seconds Timepieces

Unveiled this year, the new DATOGRAPH PERPETUAL TOURBILLON and RICHARD LANGE JUMPING SECONDS models have now been dispatched to dealers.

Produced in a limited edition of 100 pieces, the new DATOGRAPH PERPETUAL TOURBILLON combines a perpetual calendar with a flyback chronograph and a tourbillon in an absolutely unique way.

Since 2006 the name DATOGRAPH PERPETUAL has stood for the ingenious combination of flyback chronograph and perpetual calendar. Ten years on, this fascinating timepiece is now available with an added tourbillon – although at first glance, the only clue is in the name on the dial. That is because the tourbillon can only be seen by looking through the sapphire-crystal caseback.
DATOGRAPH PERPETUAL TOURBILLON
For the watchmakers, integrating this popular mechanism into this exclusive timepiece was a much more challenging task than might be expected. That is because the 729-partcalibre L952.2 movement was not simply constructed module by module. Instead, A.Lange & Söhne decided on a more elegant but more complicated solution: within the movement, which was rebuilt from scratch, the three complications that give the watch its name were all connected to form an integrated whole.

The chronograph is equipped with a column-wheel mechanism, a precise jumping minute counter and a flyback function. The jumping perpetual calendar is paired with a moonphase display and a Lange outsize date. And a glance through the sapphire-crystal caseback into the movement – hand-decorated in accordance with the highest Lange standards – makes it clear how the chronograph mechanism was arranged around the tourbillon. Thanks to the patented stop-seconds mechanism, the balance wheel is momentarily brought to a standstill when the crown is pulled, so that the watch can be set with one-second accuracy.

The sophisticated nature of the watch's construction is also reflected in its design: the clearly structured black dial of this model – which is limited to just 100 watches – is easy to read despite the density of information it displays.

The first pieces of the RICHARD LANGE JUMPING SECONDS in platinum have also recently been delivered to the dealers of A. Lange & Söhne. The typical regulator dial, the classic jumping seconds mechanism, the constant-force escapement and the ZERO-RESET mechanism come together in a fascinating reinterpretation of the scientific observation watch.

For ten years, the name RICHARD LANGE has stood for a continually growing watch family. It convincingly transitions the scientific observation watch, a genre traditionally nurtured by A. Lange & Söhne, from the past to the present. Additionally, its name pays tribute to Ferdinand Adolph Lange's firstborn son.
RICHARD LANGE JUMPING SECONDS
Presented in January 2016, the RICHARD LANGE JUMPING SECONDS broadens the watch family with a model including a classic function that was once a feature of A. Lange& Söhne's historic pocket watches. Its newly developed L094.1 manufacture calibre is endowed with this complication (also referred to as seconde morte), and has an innovative constant-force escapement. The mechanism utilises the switching impulse of the jumping seconds integrated in the wheel train to deliver fresh energy to the remontoir spring of the constant-force escapement. In a separate wheel train between the mainspring barrel and the escapement, the constant-force mechanism compensates the gradually declining power of the mainspring. It assures virtually constant torque and a stable amplitude across the entire power-reserve period of up to 42 hours.

The ZERO-RESET mechanism allows the watch to be quickly and comfortably synchronised with a time signal. The rhodié-coloured regulator dial features a prominent seconds circle and presents itself in a stately platinum case with a diameter of 39.9millimetres. A small aperture at the intersection of the hour and minute circles reminds the owner when it is time to wind the watch: the display switches to red ten hours in advance.

In the movement, hand-finished to the strictest Lange standards, the technical processes are easily observable through the sapphire-crystal caseback. A five-point star, that controls the seconds jumps, rotates beneath a transparent sapphire bearing jewel in the middle of the mirror-polished end piece. The remontoir spring of the constant-force escapement can be seen through an opening in the three-quarter plate. The levers, springs and clutch of the ZERO-RESET mechanism are readily visible as well.

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