To assemble an additional alarm device in a chronograph device, by providing an additional barrel linking indirectly or directly to a controlling axis and a rotor as an energy source for alarm device.

A rotor shaft l is provided in the center of chronograph device, which drives two barrels during rotation. The rotor shaft 1 drives a ratchet 2 and drives linked gears for a ratchet 4 by way of a reducing gear 3. A ratchet 5 is driven by the ratchet 4 and at the lower part of the ratchet 5, a main barrel of the chronograph device is positioned. A ratchet 6 is driven by the rotor shaft 1 via gears, and an additional barrel 7 is provided at its lower part. In this manner, drive force is transmitted from the rotor shaft 1 to the main barrel and the additional barrel 7 and thus, the accumulation of the force given in the main barrel is never be lost even with the addition of the alarm device.