In 2019 on the occasion of the celebration to A. Lange & Söhne’s 25th anniversary of their signature model Lange 1, the firm released a series of ten limited edition timepieces over the course of the year such as the Lange 1, Grande Lange 1 Moonphase, Little Lange 1, Lange 1 Tourbillon Perpetual Calendar, Lange 1 Daymatic, and like the present example, the Lange 1 Time Zone. Designed with a unified and wholistic DNA of the brand's most celebrated model, all ten variants have a distinctive blue printed argenté-coloured dial with radiant blue steel hands. Through the sapphire-crystal caseback, the famed metropolis movement exhibits a very special feature like no other. Each balance cock from the series is decorated with a new engraving pattern with the outsize date graphic with a “25”, and in the colour blue for the first time.

Aesthetically pleasing and finished to the highest standards, the manual wound calibre L031.1 features a twin mainspring barrel with a power reserve of 3 days. Numbered 20 out of a limited edition of 25 pieces, the present example is preserved in an extremely attractive condition and offered with its full accessories by the original owner. Frontier in concept and design, the Lange 1 Time Zone paying tribute to the 25th anniversary of the collection is certainly a rare treat for the avid collector and jet setters of our time.