The calibre L922.1 SAX-0-MAT

A MOVEMENT WITH COMPLICATIONS.

Not many movements can match the awe-inspiring technical com-plexity of the calibre concealed in the LANGEMATIK PERPETUAL.
No fewer than 478 individual parts, representing a densely packed ensemble of highly complicated mechanisms, interact harmoniously
in this rare timepiece.

The minimum-friction winding and reduction gear train

SAX-0-MAT – AUTOMATICALLY SAXON.

The self-winding calibre is powered by a bidirectionally winding three-quarter rotor crafted from 21-carat gold and platinum. The winding force is transmitted to the mainspring barrel by a wheel
train with four ball bearings that eliminate friction almost completely.
It can store enough energy for up to 46 hours of autonomy. The
three-quarter rotor exposes the precious going train, showcasing
the shock-proofed screw balance with the Nivarox-1 balance spring,
the hand-engraved balance cock, and the whiplash precision index adjuster which allows the rate of the watch to be fine-tuned without requiring the removal of the balance wheel.

The calibre L922.1 SAX-0-MAT
SEEN THROUGH A WATCHMAKER’S LOUPE (4 MB)

USEFUL INVENTIONS.

The ZERO-RESET mechanism is another patented solution devised by Lange and quite probably unparalleled in precision watchmaking. This useful invention greatly simplifies the synchronisation of the watch with a time signal. The complicated perpetual calendar mechanism is mounted on the dial side of the Lange L922.1 SAX-0-MAT calibre. The movement has 43 synthetic ruby jewel bearings. All of its surfaces are lavishly decorated by hand, even those normally invisible for the eye of the beholder. The edges of the movement parts are chamfered and polished. And after assembly, the movement is adjusted in five positions.