Computers - Electronics - Robots - Technology - TV's
Dec. 12, 1964 - A tuning-fork instead of a balance wheel.:used as movement, that is the latest rage rage on the watch market. In the year 1711, when the trumpeter John Shore in vented the tuning-fork, surely he don't think, that one day his invention would be built in wrest-watches as time-fixing instrument. From America coming, this watch now is put on German market. The tuning-fork is supplied with energy by a little battery. The Frequency of the tuning-fork-swings is 100 or 10000 swinings the seconds. Because at this balance wheel is no possibility for friction, with this system was reached the best accuracty for long periods till now. Ops: the prototype of the Accutron and a wrest-watch which is furnished with this Accutron. The price for such watches is between DM 500, -- and DM 1000, -- (about £ 45 and or £90)
