RESONATOR ELEMENT

原文（中国語）

A resonator element includes three vibrating arms. Each of the three vibrating arms includes an arm extending from a base and a wide section positioned at a tip end portion of the arm. The wide section is wider than the arm. When, of the three vibrating arms, the vibrating arm positioned at a center of an arrangement is provided with the arm having a width denoted by W1 which is defined as a length of the arm in the second direction, and the vibration arms positioned on both sides of the arrangement are provided with the arms each having a width denoted by W2 which is defined as a length of the arms in the second direction, a relationship 1≤W1/W2≤2 is satisfied. When a length of the three vibrating arms in the first direction is denoted by L and a length of the wide sections in the first direction is denoted by Lh, a relationship Lh/L≤0.49 is satisfied.