Timepiece

A timepiece comprising:

• a case including a protrusion protruding inward from an inner wall;
• an operation section including a shaft passing through a side surface of the case, a head provided at one end of the shaft, a drive wheel provided at the other end of the shaft;
• an internal rotary ring provided in a position where the internal rotary ring overlaps with the protrusion in a plan view and including a plurality of teeth, a part of the plurality of teeth engaging with the drive wheel;
• and
• an elastic member disposed between the protrusion and the internal rotary ring in the plan view and including a convex section that engages with the plurality of teeth,
• wherein the elastic member is configured with a beam, a first leg, a second leg, a cantilever beam, and the convex section,
• the beam extends along a first direction, and the first and second legs downwardly extend from first and second ends of the beam, respectively, along a second direction perpendicular to the first direction,
• the cantilever beam extends along the first direction from the first end of the beam toward a center of the beam, and
• the convex section is located at a distal end of the cantilever beam and upwardly protrudes along the second direction.