The Recta CA1 is a manual-wind chronograph movement with a 60-second and 30-minute recorder, operated by a pillar wheel mechanism. It features a sub-second function and allows for the setting of the day and month through a pusher at the 10 o'clock position. The month setting requires a deeper push whereas the day setting can be done manually. Additionally, the movement includes a date hand which can be adjusted using a pusher located at the 8 o'clock position. The Recta CA1 movement was commonly used during the period around 1950.