G04D3/02

Method for fabricating diamond-polished appliques for horology

An applique for horology includes a visible upper surface and a lower surface for resting on a dial or a structure of a timepiece. The applique also includes at least one foot projecting from the lower surface for attachment to the dial or the structure. To manufacture the applique, in a first operation, a profile or bar is provided in which blanks of the feet and of the lower surface are machined prior to cutting the profile or bar in a second operation. Then, the upper surface is re-machined with at least one final diamond-polishing operation. During the first operation, at least two machining operations are performed in a cross so as to form a blank of each foot with a polygonal contour having facets.

Watch refurbishing devices and methods

At least one resurfacing system and at least one adjustment guide system for positioning a chuck holding a watch component relative to the resurfacing system. In example embodiments, the adjustment guide system includes one guide rail providing linear offset/distance and angular adjustment and guidance, or two perpendicular guide rails providing linear offset/distance and lateral position adjustment and guidance. Some embodiments include first and second resurfacing systems and a common rotary drive system that drives both the first and second resurfacing systems. The first resurfacing system can be a linear belt resurfacing system and the second resurfacing system can be a rotary disc resurfacing system. Some embodiments including the rotary disc resurfacing system have a metal rotary mounting disc driven by the drive system and a replaceable magnetic resurfacing disc that magnetically adheres to the rotary disc. Also disclosed is a method of resurfacing watches using these watch resurfacing devices.

RESONANT ORGAN FOR A STRIKING MECHANISM OF A TIMEPIECE, THE STRIKING MECHANISM COMPRISING SUCH A RESONANT ORGAN, AND METHOD FOR MANUFACTURING SUCH A RESONANT ORGAN

A resonant organ (100) for a striking mechanism (200) including a gong (110a, 110b) attached to a gong holder (120), wherein the gong (110a, 110b) has a notch (117) in which a stone (1) is embedded and secured, the stone (1) including a table (3) with an impact surface suitable for being struck by a hammer (210a, 210b) of the striking mechanism (200).