Germany’s A. Lange & Sohne unveils its newest Grand Lange 1 watch, the Grand Lange 1 Moon Phase, which devotes prominent space on its dial for a realistically rendered and ultra-accurate moon-phase complication. The moon-phase disk, which features a patented coating process, is connected to the watch’s hour-wheel continuum, meaning it is in constant motion, just like the moon itself. According to Lange, the time that elapses between each new moon is accurate to 99.9978 percent, substantially more precise than that of most other moon-phase watches. Assuming the watch runs continuously, the display need only be corrected once every 122.6 years (though there is an easy-to-use push-piece corrector in the case flank between 7 and 8 o’clock just in case one needs to re-adjust it before then).
The solid gold lunar disk moves across a deep-blue field with more than 300 laser-cut stars of various sizes, approximating the look of a night sky. The movement, Lange’s manual-wound Caliber L095.3, is only 4.5 mm thick and stores an impressive power reserve of 72 hours in a single mainspring barrel. Like other Lange calibers, it features numerous decorative finishes as well as a three-quarter plate and bridges made of German silver. The case is 41 mm in diameter and available in yellow gold, rose gold, or platinum.
I think the ALS is the best among the three.