Switch device and timepiece

A switch device comprising:

• a case having a through-hole;
• a movable operating member having a shaft to be inserted into the through-hole of the case;
• an exterior member mounted on the operating member and configured to be displaced in an axial direction along an axis of the shaft and rotated together with the operating member;
• and
• a buffer member located at a position between the movable operating member and the exterior member without being exposed outside of the exterior member, configured to buffer transmission of impact applied from outside and inside of the device,
• wherein the buffer member includes a plurality of escape spaces for deformation of a shape of the buffer member,
• an end portion of the operating member is provided with a projected portion,
• the projected portion is inserted to project axially into one of the escape spaces included in the buffer member, and
• a first axial space between the projected portion and an inner surface of the exterior member is axially larger than a second axial space between the exterior member and the case.