A user-worn device includes a band portion and a display portion. The band portion comprises a wire that is configured to create a first magnetic field that follows the curvature of the band portion. The display portion comprises a first electromagnet that is configured to produce a second magnetic field. The display portion orbits around the band portion in a first orbital direction when the first and second magnetic fields interact.

The present invention relates to a display device having a rotatable display unit (12), the display device including: a display main body (10) having the display unit (12) for displaying various items of information; a rotary unit (20) combined with the display main body (10) and having a rotary weight (25) eccentric from the display main body (10); and a rotary base (30) combined with the display main body (10) or the rotary unit (20) to rotate relative to the display main body (10) or the rotary unit (20), in which the rotary unit (20) and the display main body (10) combined with the rotary unit (20) are rotated relative to the rotary base (30) and aligned in a predetermined direction by gravity acting on the rotary weight (25).

A professionally customizable timepiece includes a primary casing including a movement and configured to operate independently as a timepiece, and a secondary casing having an interior space for receiving the primary casing and further design elements. The secondary casing completely encloses the interior space and can be opened without tool for placement of the primary casing and/or design elements into the interior space or to remove them from there. The secondary casing includes a sight glass and is configured to secure the primary casing at a selectable position in the interior space.

A user-worn device includes a band portion and a display portion. The band portion comprises a wire that is configured to create a first magnetic field that follows the curvature of the band portion. The display portion comprises a first electromagnet that is configured to produce a second magnetic field. The display portion orbits around the band portion in a first orbital direction when the first and second magnetic fields interact.

A marine chronometer includes a clock mounted on a support, for example mounted so that it can be inclined with respect to the support using a gimbal mounting, the clock including, inside a case, a mechanical clock movement driven by a barrel, and the clock also including a rewinding control member engaged with a rewinding geartrain for rewinding the barrel. The rewinding control member includes a rewinding control geartrain positioned on the outside of the clock, secured to a spindle passing through a wall of the case via a bearing, the through-spindle being engaged with the rewinding geartrain.

A professionally customizable timepiece includes a primary casing including a movement and configured to operate independently as a timepiece, and a secondary casing having an interior space for receiving the primary casing and further design elements. The secondary casing completely encloses the interior space and can be opened without tool for placement of the primary casing and/or design elements into the interior space or to remove them from there. The secondary casing includes a sight glass and is configured to secure the primary casing at a selectable position in the interior space.

A wristwatch is described, including a middle having a side wall, defining a median plane and further having attachment members for securing respective first and second ends of a strap to the middle, and a cover capable of pivoting, relative to the middle, between a first closed position in which the ends of the strap are locked onto the middle, and a second open position in which the ends of the strap are free to be separated from the middle. The cover is arranged so as pivot about a rotational axis parallel to the median plane, each attachment member including a hole provided in the side wall and intended for receiving the corresponding end of the strap by insertion in a direction substantially parallel to the median plane.

A convertible smart watch including a smart watch and an analog watch together, which is convertible between the smart watch and the analog watch at user's option, is disclosed. The convertible smart watch includes a frame with a through hole in the center, a watch body including an analog watch unit and a smart watch unit combined against their backs such that that analog watch be exposed to one side and the smart watch be exposed to the other side, which is rotatable inside the through hole of the frame, and a smart watch on-off unit to operate the smart watch unit, when the smart watch is exposed to the front of the frame and the analog watch is exposed to the rear of the frame.

A marine chronometer including a watch tiltably mounted on a support with a gimbal suspension, the chronometer support also includes a cradle movable in translation between a rest position wherein the watch is free to move on the gimbal suspension, and a holding position wherein the watch is resting on the cradle.

The invention relates to a marine chronometer comprising a clock mounted on a support, for example mounted so that it can be inclined with respect to the support by means of a gimbal mounting, the clock comprising, inside a case, a mechanical clock movement driven by a barrel, the clock also comprising a rewinding control member engaged with a rewinding geartrain for rewinding the barrel.

The chronometer according to the invention is wherein the rewinding control member comprises a rewinding control geartrain positioned on the outside of the clock, secured to a spindle passing through a wall of the case via a bearing, the said through-spindle being engaged with the barrel rewinding geartrain.