The sixth model of the anniversary collection shows the moon by day and by night, which was originally due for release on the 25th June is now released. Here are the details.
In 2017, with the Lange 1 Moon Phase, A. Lange & Söhne took a new approach to depicting the moon phases by combining the eponymous astronomical display with a day/night indicator. To mark the occasion of the 25th anniversary of the Lange 1, it is now being presented in an exclusive 25-watch limited edition in white gold with blued steel hands.
The watch is the same as the 2017 Lange 1 Moon Phase Day/Night with differences as noted.
The Lange 1 Moon Phase is shaped by the harmony between 438 components with tolerances of hundredths of a millimetre. It combines the special hallmarks of the classic Lange 1 with a moon phase indication that only needs to be corrected by one day every 122.6 years and that is complemented by a unique day/night indication, bringing a new dimension to one of the most romantic complications. As like all Lange watches, it is assembled twice.
The 70 parts for the moon-phase display were so cleverly integrated into calibre L121.3 that it is only marginally larger than calibre L121.1 of the Lange 1. The arrangement of the display is based on two main components. A celestial disc – made of solid gold with a blue coating – performs exactly one revolution every 24 hours. On the disc, the different times of day are represented by varying blue hues caused by interference effects. During the day, it shows a bright sky without stars, while at night it depicts a dark sky with prominently contrasting laser-cut stars. A separate solid-gold moon pursues its orbit in the foreground, thus always circulating against a realistic background that doubles as a day/night indicator when setting the watch. Thanks to a special gear arrangement, the moon is continuously on the move and accurate to 122.6 years.
The disc with the pre-assembled double-moon component is carefully added to the dial side as the last step before the dial is assembled.
Like all other models of the “25th Anniversary” collection, the Lange 1 Moon Phase is endowed with a special movement detail: The anniversary number 25 is integrated in the manually engraved, blue-filled balance cock. As regards typography and form, it corresponds to the Lange outsize date which is set to 25 in all photos. The same number also refers to the strict limitations of all anniversary models.