A timepiece comprising a main energy storing device, a gear train coupled to the main energy storing device, a tensioning element coupled to the gear train, the tensioning element configured to be driven about a tensioning axis in cyclic steps, a tensioning control system configured to control the tensioning element, a storage hairspring having a first end and a second end, the first end connected to the tensioning element, a wheel connected to the second end of the storage hairspring, a clockwork movement rotatably driven by the wheel, an escapement coupled to the clockwork movement and a device configured to be switched in a stepwise manner and driven rotatably in cyclic steps by an element of the gear train.