A timepiece movement is provided, including a first regulating member and a first escapement associated therewith; a first train connecting the first escapement to a first energy source; a second regulating member and a second escapement associated therewith; a second train connecting the second escapement to a second energy source; a display of a current time; at least one differential gear including a first input wheel meshing with the first train and a second input wheel meshing with the second train, the at least one differential gear driving the display, where the second regulating member consumes less energy than the first regulating member.