アナログ多機能クォーツの開発II : キャリバー5T・7T回路システム

概要

論文の詳細を見る
The Cal. 5T・7T series are the multi-functional analogue quartz timepieces which movement can be widely applied for chronograph, alarm, timer, worldtime display, and so on. This can be realized by the development of the CPU-IC, the bi-rotational stepping motor, and the compact and widely useful mechanism. Not only the movement size but also the operational easiness, legibility, and repairability are greatly improved as compared with the conventional multi-function watches. This paper describes the electronic circuit system and the bi-rotational stepping motor of the Cal. 5T・7T series.
社団法人日本時計学会の論文
1990-09-20