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LANGE 1 family

Perfection for every day – and every night

The moon can be seen particularly well at night. Once the sun has set, it dominates the heavenly canopy. But it accompanies us by day as well. The LANGE 1 MOON PHASE makes exactly that visible. Its moon moves in front of a bright-blue celestial disc without stars during the day and in front of a dark-blue sky studded with 383 crisply contrasting stars at night.

Close-up of movement L121.3

Movement L121.3

The average lunar month lasts 29 days, 12 hours, 44 minutes and 3 seconds. Simplified moon-phase displays round the cycle down to 29.5 days. This inaccuracy adds up to a deviation of one day after two and a half years. The LANGE 1 MOON PHASE tracks the lunar cycle with an accuracy of 99.998 per cent. Once correctly set, the display has to be corrected by one day after 122.6 years, assuming the watch runs without interruption.

Explore further

The aesthetics of the triangle
The aesthetics of the triangle
While thinking in circles is conventional in watchmaking, we factor in the particular design principle based on the triangle when we develop watches.
Moon-phase display
Moon-phase display
Most of our moon-phase displays reproduce the moon’s orbit with a precision of 99.998 per cent.
Outsize date
Outsize date
The A. Lange & Söhne outsize date enables a date display with digits around three times as large as those in watches of comparable dimensions.

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