The Dugena 3803 watch movement is a mechanical movement with a stop feature that is activated through three crown positions. When the crown is pushed, the second hand is in motion. When the crown is half-pulled, the second hand stops, and when the crown is completely pulled, the movement resets. This movement is a simple manual wind chronograph with a duration of 60 seconds. It includes a center second hand and a sweep seconds function. The Dugena 3803 movement was commonly used during the period of approximately 1950.