| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a movable part, and to make manually drivable a piezoelectric transducer by playing a role of a conventional crown by driving the piezoelectric transducer. SOLUTION: Particularly, this watch 1 including a means 16 for displaying at least one data item and a case 2 composed of an upper part provided with a glass cover 14 for covering the display means 16 and a bottom part by a case back 6 existing under the display means 16, includes the piezoelectric transducer 32 for generating voltage when applying mechanical pressure to the upper part. The voltage generated by the piezoelectric transducer 32 is applied to an electronic circuit, and the electronic circuit generates a logical signal according to applied pressure. This electronic circuit is arranged in the case 2, and the piezoelectric transducer 32 is arranged in the bottom part of the case 2 to be fixed to the case 2.
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