A timepiece part according to the invention includes: a substrate; and a first coating configured from a material containing cobalt as a primary component, and 26 mass% to 30 mass% of Cr, and 5 mass% to 7 mass% of Mo. The first coating has a surface with a percentage surface area increase of 0% to 1.2% as measured by atomic force microscopy against a reference flat surface.

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).

Watch or jewel (1) which is encrusted with one or several precious stones (10) whereby at least one precious stone (10) has fluorescent qualities, characterised in that the watch or jewel (1) is provided with means (12) which allow to make the above-mentioned precious stone or precious stones (10) fluoresce each with a desired intensity, whereby these means (12) comprise one or several light sources (13,45) for emitting UV light and means (15-17) for guiding the light which is emitted by one or several of the above-mentioned light sources (13) through the precious stone or precious stones (10) having fluorescent qualities.

Montre comprenant:

• une boîte (10) qui comporte une carrure (14), une glace (12) et un fond (16) définissant ensemble un logement (18),

• un mouvement (24),

• des moyens d'affichage (28) commandés par ledit mouvement (24), et

• des moyens de correction (36) pour permettre une modification de l'information affichée par les moyens d'affichage.

Selon l'invention, la montre comprend, en outre, une pastille (20) creuse dans laquelle est monté ledit mouvement (24), les moyens d'affichage (28) et les moyens de correction (36) disposée dans le logement (18) et dimensionnée de manière à ce qu'elle puisse s'y mouvoir librement.

An electronic timepiece (100) is provided that has indicator hands capable of providing various indications. The electronic timepiece with indicator hands, characterized by comprising a time hand (101, 102) indicative of time, first and second indicator hands (103, 104) separately provided from the time hand (101, 102), and drive means for reciprocally rotating the first and second indicator hands (103, 104) in opposite directions to each other within a predetermined range.

An electronic timepiece with indicator hands having indicator hands capable of providing a variety of indications and capable of preventing unstable movement of the indicator hands, which comprises time hands (101, 102) for showing a time, first and second indicator hands (103, 104) provided separately from said time hands (101, 102), rotating means for reciprocally rotating said first and second indicator hands (103, 104) in directions opposite to each other within a predetermined range, and restricting means for restricting a movable range and capable of adjusting a restricting position of said first and second indicator hands (103, 104). Jumping of hands or the like of the first and second indicator hands (103, 104) due to impact or the like is restricted by the restricting means. Further, where there is a fear that the first and second indicator hands (103, 104) stop in a non-rotatable range, the restricting means is adjusted to change the movable range of the first and second indicator hand (103, 104).

A rotationally symmetric timepiece wherein time information is displayed along an axis that is marked in 13 locations with axially symmetric markers (17, 17a, 17b, 17c). The 13 markers divide the axis into 12 sections of preferably equal length as well as mark the ends of the axis. Time information is displayed by one or more indicators (18, 19) which move along the axis at controlled rates. To display hour information, an indicator (18), which encircles the axis, is moved along the axis at a speed such that it travels the full length of the axis in a 12-hour period. At the end of this period, the indicator (18) is preferably reset back to ist starting position (17a). To display minute and second information, two additional indicators are used. The minute indicator (19) is made to travel the length of the axis every hour before being reset, while the second indicator travels the length of the axis over a period of one minute before it is reset. The indicators (18, 19) are of different diameters so they do not interfere with each other as they travel along the axis.

A rotationally symmetric timepiece wherein time information is displayed along an axis that is marked in 13 locations with axially symmetric markers (17, 17a, 17b, 17c). The 13 markers divide the axis into 12 sections of preferably equal length as well as mark the ends of the axis. Time information is displayed by one or more indicators (18, 19) which move along the axis at controlled rates. To display hour information, an indicator (18), which encircles the axis, is moved along the axis at a speed such that it travels the full length of the axis in a 12-hour period. At the end of this period, the indicator (18) is preferably reset back to ist starting position (17a). To display minute and second information, two additional indicators are used. The minute indicator (19) is made to travel the length of the axis every hour before being reset, while the second indicator travels the length of the axis over a period of one minute before it is reset. The indicators (18, 19) are of different diameters so they do not interfere with each other as they travel along the axis.