Grand Lange 1 Moon Phase Gold by A. Lange & Söhne

In the Grand Lange 1 Moon Phase, the eponymous complication is a genuine eye-catcher. The prominent position of the lunar disc within the hour and minute circle accommodates a diameter of 14.3 millimeters. The display reproduces the so-called synodic month of 29.531 days (or 29 days), 12 hours, 44 minutes and 3 seconds with an accuracy of 99.998 percent.