The Accutron 230

The Model 230 Accutron was the first tuning fork movement small enough to be offered as a Ladies watch. It was available in two basic sizes, the only difference being the bottom or pillar plate. The larger size (depicted above) was used in men's watches also. It could be obtained with or without a sweep second hand. The electronic circuitry had been miniaturised from previous tuning fork watches, and had one set of disk-shaped coil windings which extended under the ends of both of the tuning fork tines.