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SAXONIA family

Precision in the long and short run

The DATOGRAPH PERPETUAL is the first wristwatch for which Lange combined a chronograph with a perpetual calendar. Showing the date, day of week, month, and leap year, this perpetual calendar is engineered to such accuracy that it requires no adjustment until the year 2100, when a one-day correction is needed. The chronograph function allows short-time measurements with an accuracy of one-fifth of a second.

Close-up of movement L952.1 of the DATOGRAPH PERPETUAL

Movement L952.1

The calibre L952.1 movement consists of 556 parts – the calendar mechanism alone incorporates 223 components. The chronograph mechanism is controlled by a classic column wheel that coordinates all switching sequences. Rockers and levers of various shapes engage with this wheel. The considerable length of the levers is due to the special dial arrangement. They bypass the outsize date mechanism and bridge the distance to the subsidiary dials located below the centre line.

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Chronographs and their manufacture movements have been flagship products of A. Lange & Söhne since 1999.
Calendar function
Calendar function
Lange models incorporate either annual calendars or perpetual calendars.
Twofold assembly
Twofold assembly
Be it a simple model or a highly sophisticated timepiece – at A. Lange & Söhne, every movement is assembled twice.

How can we be of service?

Whether you are in search of a specific model, have questions out of interest or need a service request for your timepiece – we are delighted to help you. We are at your service by phone, email or in one of our boutiques.

The A. Lange & Söhne salon in Zurich