作者: Toshio Hiruta , Hideo Uehara , Kunikazu Mochida , Toshio Umemoto , Masato Yamada
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摘要: An electronic diving wristwatch having a pressure sensing depth meter provided in projection on case of the watch without interferring with existing crown, pushbuttons, etc. The has piezoelectric type element which produces electrical output response to water pressure. is converted displayed digital display window watch.