Patent ID: 8498179

Claim:
A mechanism for indication of the lunar phases, in particular for a mechanical watch, comprising a moon disk and a dial comprising a substantially semi-circular aperture, the moon disk being rotated in such a way as to display the indications inscribed on the moon disk through the aperture in order to indicate the lunar phases, wherein the mechanism comprises at least one first occultation disk housed rotatably, at least in part, between said moon disk and said dial, and a gear train which drives said at least first occultation disk in such a way that the indications inscribed on the moon disk are obscured, at least in part, during specific phases of operation of the mechanism in such a manner that the indications appearing through the aperture correspond substantially to the natural appearance of the moon during the entire lunation, wherein said at least first occultation disk is arranged non-concentrically relative to the moon disk.