In late years the mechanical watch which a foreign-made watch was able to include attracts attention. In addition, a life pattern of the present generation is shifting on 2nd on a weekly holiday. In a market, this influence is had, and needs to a mechanical watch of the long power reserve. Thus it was the long continuance corresponding to market needs and we developed high accuracy mechanical watch (Cal.9S67).

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Liquid crystal devices are one of the suitable devices for spatial light modulators since their half-wave voltage is only a few volts and they can be driven by CMOS ICs directly. In this paper, we will present the liquid crystal active optics with segmented ITO patterns. Each segment is connected with a high resistive ITO, so that voltage distributions which cause phase distributions can be generated by 3-terminal inputs. We also present the application to optical pickups to compensate optical aberrations dynamically. These devices are now on the market.

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This paper describes Time Analog to Digital Converter(TAD) technology, TAD digital quadrature detection(TAD-DQD), and radio-controlled clock/watch as an application of the TAD-DQD. Proposed receiver circuit for the LF standard time signal consists of CMOS digital circuit except the analog pre-amplifier and is easy to be integrated with other digital circuits such as time-counting, decoder, and controller circuits into a single chip CMOS IC. When the phase data obtained by the TAD-DQD is used with the amplitude data, reliability of the received time code increases and acquisition time decreases as compared to those of conventional envelope detection receiver circuits. Frequency error of the local oscillator in the clock/watch, which is used as a time standard, also can be estimated and corrected.

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In the engineering field of fine positioning, a small input displacements obtained by such actuator as an electrical element is often magnified by using mechanical levers with elastic hinges. To the contrary, such a small input displacement is sometimes required to be reduced further to as fine as subnanometer order in the field of, for example, molecular manipulation technique. The authors studied so far both experimentally and theoretically on the apparatus for magnification and reduction of input displacement, comprising of some elastic hinges and rigid blocks. In this paper, the authors discuss theoretically on the relation between the input displacement and output displacement of a fundamental mechanism. The mechanism consists simply of elastic beams and rigid block ,which creates a very high reduction of input displacement. It is clarified that though the mechanism provides fairly higher reduction ratio, the output displacement obtained here is nonlinear with respect to the input displacement, leading to an unfavorable effect for fine positioning. The results shown in this paper will ,however, will be useful for the development of advanced mechanism with high reduction ratio by redesigning the structure.

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We developed two types of watches, "SEIKO Pedessa" and "SEIKO Pullsse"; that are equipped with pedometer and pulse rate monitor. Pedessa counts walking steps while it is worn and displays the workout of the day. Pullsse counts steps and measures pulse rate when a user activates a measurement mode. It gives advice on strength of the exercise and supports management of physical fitness.

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