TUNING-FORK-TYPE QUARTZ VIBRATING PIECE

摘要

This tuning-fork-type quartz vibrating piece comprises a quartz piece having a crystal orientation. The tuning-fork-type quartz vibrating piece is provided with a base part and a pair of first and second leg parts protruding in one direction from the base part. Each of the first and second leg parts has a groove part formed so as to be off center in the widthwise direction of the first or second leg parts. Furthermore, the groove parts are such that, in a shape viewed from the end faces of the first and second legs in the widthwise direction, the lowermost point of the groove parts is positioned in the widthwise center of the groove parts (in the width direction of the first and second leg parts).