The Cyma Tavannes 011 is a mechanical watch movement that incorporates a Breguet hairspring and a stem mechanism without a setting-lever spring. It is a manual-wound chronograph movement with the functions of measuring time intervals of 60 seconds, 30 minutes, and 12 hours, utilizing a pillar wheel system. This movement also consists of a sub-second function. The Cyma Tavannes 011 movement was primarily used during the approximate period of 1920.