An extra-thin manually or automatically wound watch movement in which at least one wheel is pivoted in an overhang position by means of a single-race miniaturized ball bearing.
A manually or automatically wound extra-thin watch movement, comprising at least one barrel (3) and in which all the wheel sets are assembled in cantilever on one sole base plate (1) with the help of one ball bearing only (15 to 21). The ratchet (25) is in the form of a drum surrounding the barrel. It is swivelled by its periphery with the help of at least three rollers, each pivoted on a ball bearing, and the barrel (3) is pivoted within the ratchet by means of a ball bearing (23). This design enables reducing to a minimum the energy losses due to friction.
4459032 - Thin wrist-watch - Owned by Societe Suisse pour I'Industrie Horlogere Management Services S.A. (Bienne,CH)
A thin electronic wrist-watch the thickness of which is constituted by the uperposition of a first crystal, at least two time indicating discs and a case back, the latter including a second crystal. The gears are supported on specially designed studs and means are provided to limit axial gear play.
A dynamic magnetic device and a method generate a dynamic magnetic field of alternating polarity when it is moved. The device has a magnetic disc with substantially an alternating polarity pattern rotatably mounted to a housing. The magnetic device is biased mounted so that when the user moves the housing, gravity or the earth's magnetic field or both causes user-relative rotational movement of a magnetic disc with an alternating polarity pattern.
