A timepiece includes a case including a protrusion protruding inward from an inner wall, a crown including a shaft passing through the side surface of the case, a head provided at one end of the shaft, and a drive wheel provided at the other end opposite from the one end of the shaft, an internal rotary ring provided in a position where the internal rotary ring overlaps with the protrusion in the plan view and having teeth that engage with the drive wheel, and elastic members disposed between the protrusion and the internal rotary ring and each including a convex section that engages with the teeth.

A dial including: a rotating body which is provided to be rotatable; and a dial main body which includes a covering section that covers a peripheral portion of the rotating body.

A system (100) for displaying time or time derivative information, in particular a measured time, the system including a limb (10) comprising at least one modifiable graphic element (20a-f) forming time or time derivative reference information, a member (1) for indicating the time or time derivative information in cooperation with the limb, a device (2, 8, 22, 71) for modifying the graphic element, and a device (3, 4, 34) for resetting, by action of a user, to a predetermined configuration, in particular for resetting to zero, the time or time derivative information displayed by cooperation of the indication member and of the limb.

The disclosure discloses a display device and a smart watch. The display device includes a display panel, a backlight module and a center rotating shaft; the backlight module includes a light guide plate, an optical film, and a back plate; the backlight module has a first channel extending through the back plate, the light guide plate and the optical film sequentially to allow the center rotating shaft to pass through the backlight module; the display panel has a second channel extending through the display panel in a thickness direction thereof to allow the center rotating shaft to pass through the display panel; the second channel communicates with the first channel; the center rotating shaft passes through the first channel and the second channel sequentially, and a portion, between the display panel and the back plate, of the center rotating shaft is a light transmitting portion made of a transparent material.

On-demand horological display mechanism, including a plurality of primary mechanisms each capable of determining the value of a variable, and at least one actuator that can be maneuvered by a user for the selection of the display of the instantaneous values of a specific variable determined by one of the primary mechanisms, each display being performed by the cooperation of a moveable display including a hand or a disc, with a complementary display including at least one graduated index, where the display and/or the complementary display is common to all of the displays that the display mechanism may produce.

A date display device (10) including: a dial (11) including date indications in the form of a character scale (15), of which a part is of apertures (150), a mobile index (12) with respect to the dial (11); a date mechanism configured to move the index (12) by one step per day, such that each position occupied by the index (12) denotes one of the characters (15); and a mobile element (13) arranged between the dial (11) and the date mechanism having on a surface facing the dial, a portion of interest (131), the mobile element being linked with the date mechanism such that the latter drives it in an active position, wherein the portion of interest is visible through the aperture (150) and in a rest position wherein the portion of interest is set back from the aperture and wherein a marking zone (160) is visible through the aperture.

The disclosure discloses a display device and a smart watch. The display device includes a display panel, a backlight module and a center rotating shaft; the backlight module includes a light guide plate, an optical film, and a back plate; the backlight module has a first channel extending through the back plate, the light guide plate and the optical film sequentially to allow the center rotating shaft to pass through the backlight module; the display panel has a second channel extending through the display panel in a thickness direction thereof to allow the center rotating shaft to pass through the display panel; the second channel communicates with the first channel; the center rotating shaft passes through the first channel and the second channel sequentially, and a portion, between the display panel and the back plate, of the center rotating shaft is a light transmitting portion made of a transparent material.

Exemplary arrangements relate to a universal world timepiece such as a clock having a movement (11) in connection with indicators such as hands (16, 18, 20). The timepiece includes a stationary oriented 24-hour clock face (101, 301, 401, 501) including hour marks for each hour, and a dial (103, 303, 403, 503) which is movable relative to the 24-hour clock face. The example dial has a unique icon such as a different Latin letter for each hour of the 24 hours. A computer (10) of the timepiece may operate to determine geographic coordinates and/or or to receive wireless time signals and to determine the time zone in which the timepiece is currently located. The computer operates to cause the dial to be rotatably positioned responsive to the time zone determination, to cause a particular icon to be linearly aligned with a particular hour mark of the clock face. The arrangement enables a time in a designated time zone such as world time to be read, along with the local time and enables users in various time zones with clocks including such dials to set a future appointment at the same real time through designation of an icon.

Exemplary arrangements relate to a universal world timepiece such as a clock having a movement (11) in connection with indicators such as hands (16, 18, 20). The timepiece includes a stationary oriented 24-hour clock face (101, 301, 401, 501) including hour marks for each hour, and a dial (103, 303, 403, 503) which is movable relative to the 24-hour clock face. The example dial has a unique icon such as a different Latin letter for each hour of the 24 hours. A computer (10) of the timepiece may operate to determine geographic coordinates and/or or to receive wireless time signals and to determine the time zone in which the timepiece is currently located. The computer operates to cause the dial to be rotatably positioned responsive to the time zone determination, to cause a particular icon to be linearly aligned with a particular hour mark of the clock face. The arrangement enables a time in a designated time zone such as world time to be read, along with the local time and enables users in various time zones with clocks including such dials to set a future appointment at the same real time through designation of an icon.

A timepiece includes a case including a protrusion protruding inward from an inner wall, a crown including a shaft passing through the side surface of the case, a head provided at one end of the shaft, and a drive wheel provided at the other end opposite from the one end of the shaft, an internal rotary ring provided in a position where the internal rotary ring overlaps with the protrusion in the plan view and having teeth that engage with the drive wheel, and elastic members disposed between the protrusion and the internal rotary ring and each including a convex section that engages with the teeth.