Citizen Watch Company, Ltd.

Kunikazu Mochida

Toshio Umemoto

Toshio Hiruta

Kenji Fujita

Masato Yamada

Kiyotaka Igarashi

Hideo Uehara

To provide a hand display-type electronic timepiece which is simply constructed, enables the manufacturer or the user of the analog electronic timepiece to easily and correctly accomplish synchronism between the hands and the timing counter, and does not require an operation for bringing the hands and the timing counter into synchronism when the cell is renewed by the user, eliminating the problems inherent in the aforementioned prior art. That is, in a hand display-type electronic timepiece 1 constituted by a cell 2, a time signal generating means 10, a motor drive control means 25, a pulse motor drive means 17, a pulse motor 18, hands 19 driven by the pulse motor, and a hand position data generating means 3 which generates hand position data corresponding to the hands, and in which the drive control of the hands is executed according to the data from the hand position data generating means 3, an analog hand display-type electronic timepiece further comprises a hand drive stop means 11 which stops the hands 19 and the hand position data generating means 3 under the condition in which synchronism is maintained therebetween, a nonvolatile memory 4 for storing hand position data generated from the hand position data generating means 3, a hand drive data control means 5 which controls the nonvolatile memory 4 and the hand drive stop means 11, and a data storage instruction means 6 which operates the control means 5, wherein in response to an instruction signal from the data storage instruction means 6, the hand drive stop means 11 stops the hands 19, and the hand drive data control means 5 writes the data stored in the hand position data generating means 3 into the nonvolatile memory 4.

Hand display-type electronic timepiece

In a wrist watch equipped with a receiving device, an antenna 19 having an antenna winding 19b, wound around an antenna core 19a with the end thereof being fixed, and having a conductible antenna terminal sheet 19d secured to an antenna winding frame 19c is inserted from a notch 10k in a dial 10 and secured with a screw 35 to an antenna support plate 33 which is secured to a circuit substrate 22, there by conducting the antenna 19 and the watch module. The construction ensures simplification of the watch module structure and easy conduction and securing of the antenna and the watch module and secured, with little influence on the receiving performance.

Electronic watch with an antenna for a receiving device

An electronic diving wristwatch having a pressure sensing depth meter provided in a projection on a case of the watch without interferring with the existing crown, pushbuttons, etc. The depth meter has a piezoelectric type sensing element which produces electrical output in response to the water pressure. The output is converted to a water depth which is displayed in a digital display window of the watch.

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Tokorozawa, Japan

Kunikazu Mochida