Method and device to display a cycle of images of the moon, notably in a watch

摘要

The method involves dividing a cycle of display during lunation into several successive parts comprising several positions of a moon indicator disc (8). A primary movement adapted to bring over a separation line in a circular window is applied to the disc. A secondary movement, smaller than the primary movement, is applied on the disc for passing the line between successive positions. Independent claims are also included for the following: (A) a device for displaying a cycle of successive images of the moon during lunation (B) a watch comprising a clockwork and a display device.