Patent ID: 7551522
Filing Date: 2009-06-23
Classification: G04B

Abstract:
1. A watch module fitted to a watch movement, said module comprising a rotary dial possessing an opening, the rotary dial being mounted rotatably on a base dial ( 3 ) via an annular low-friction member ( 4 ), wherein the watch movement comprises a plurality of complications or images and the base dial comprises a corresponding plurality of base dial apertures each said base dial aperture being arranged to align with one of the complications or images of the watch movement so that said complication or image can be viewed through the rotary dial opening when the rotary dial opening aligns with the corresponding base dial aperture, and the watch module further comprises a pusher actuatable to instantaneously rotate the rotary dial to cause the rotary dial opening to jump from a position aligned with one of the base dial apertures to another position aligned with another base dial aperture in order to display another complication or image of the watch movement through said rotary dial opening.