The International Durowe 881 watch movement, produced from 1965 onwards, features various noteworthy functions. It incorporates an electromechanically controlled balance motor, ensuring precise timekeeping. To facilitate easy winding and time setting, the movement utilizes a back crown. Furthermore, it boasts a jumping sweep second hand, allowing for accurate tracking of seconds. The watch movement also incorporates an electrical and mechanical hack feature, enabling the user to stop the balance when adjusting the time. Lastly, the Durowe 870 is classified as an electronic movement.