Patent attributes
A mechanical timepiece has an ornamental portion and a plurality of movable units operable to expose and hide the ornamental portion. Each of the movable units includes a divisional segment for exposing and hiding the ornamental portion by inward and outward movement, a holding plate configured to hold the divisional segment in a movable manner so as to move the divisional segment in inward and outward directions, and an attachment structure for attaching the divisional segment to the holding plate. The attachment structure is formed integrally with at least one of the holding plate and the divisional segment. The attachment structure includes engagement portions projecting from both sides of the holding plate and a pair of holder members formed on a surface of the divisional segment so as to have an L-shaped cross-section with their tip portions being opposed to each other. The pair of holder members extends in a predetermined direction so as to sandwich peripheral surfaces of the engagement portions therebetween.
