The ETA 2453 watch movement was produced between 1968 and 1973, with 370,000 units made during this period. It features an integrated automatic gear, eliminating the need for manual winding. The movement accommodates indirectly driven minute and second hands, providing space in the center for a robust rotor bearing. The watch also includes several functions: automatic winding, a stop seconds feature, sweep seconds, quickset date, and a hack feature.