ELECTRONIC CLOCKThe invention provides a rechargeable electronic timepiece that restarts the operation of a clock circuit by inputting a power source, thereby securely confirming the clock operation. The electronic t…DRIVE·Jun 15·1 min readFollowG04C10/00CITIZEN WATCH CO LTD [JP]
CHARGING CIRCUITCharging a storage cell requires the electromotive force exerted at a photogenerating cell in addition to the voltage equal to or higher than the forward on voltage developed at an backflow preventing…DRIVE·Sep 1·2 min readFollowG04C10/00CITIZEN WATCH CO LTD [JP]
DIVE COMPUTERA diving computer provides not only a digital, but also a graphic display of depth for a safety stop and a decompression stop, thereby providing a safe diving watch enabling prompting of a diver for s…DRIVE·Dec 17·1 min readFollowB63C11/02CITIZEN WATCH CO LTD [JP]
