How to make watch parts and how to make watches

摘要

An escape wheel or a mechanical component including an axle member, and a rotation portion having a rim with tooth portions and a holding portion for holding the axle member. The holding portion has a plurality of projection portions formed to project into a through-hole into which the axle member is inserted. An elastic portion extending from between the projection portions adjacent to each other can be provided between the holding portion and the rim portion.