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A. Lange & Söhne’s 25th-anniversary limited edition watch

As a tribute to its anniversary, A. Lange & Söhne introduces Lange 1 Tourbillon Perpetual Calendar, the most complicated model of this watch family in a 25-piece limited white-gold edition with blued-steel hands.

When the first collection of the new era was presented in October 1994, the innovative design of the Lange 1 attracted considerable attention. As on a noble dashboard, the asymmetric arrangement of the displays in the compact space of the dial assured immediate recognisability due to its unusual configuration.

The same arrangement was adopted for the Lange 1 Tourbillon Perpetual Calendar model that was first launched in 2012. A rotating peripheral ring that indicates the month was devised to integrate all calendar indications in the dial architecture of the Lange 1. The underside of the construction features a circumferential contour with wave-shaped recesses. A spring-loaded sampler lever glides along this contour and is deflected by a magnitude that corresponds to the depth of the respective recess. The more it is deflected, the shorter the month. All displays switch instantaneously.

A. Lange & Söhne’s 25th-anniversary limited edition watch 1

A retrograde day-of-week display takes the place of a power-reserve indicator. The leap year is indicated in a small aperture at 6 o’clock. And the moon-phase display, calculated to an accuracy of 122.6 years, includes a hand-engraved lunar disc in white gold that is visible through an aperture on the seconds subdial.

Thanks to the intuitive arrangement of the simultaneously switching calendar indications, a single glance delivers all of the information at once.

The argenté-coloured dial of the 25th Anniversary limited edition has discreetly nuanced shades of blue. The palette ranges from thermally blued-steel hands to all inscriptions, including the numerals of the outsize date and the alligator leather strap.

Shop A. Lange & Söhne watches in South Africa from The Vault.


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