of the wind-up lever. In this device, the coil spring tightens on the wind-up shaft in response to the shaft rotation, and thus the coil spring is rotated integrally with the film advance shaft. The rotation of the coil spring is transmitted through its free end to the spool shaft by which the film is advanced. When a predetermined length of film has been advanced, the stop gear is restrained to stop the other end of the coil spring. Because the coil spring is rotated, this stopping produces an acting force to loosen the coil spring. When this end of the coil spring is stopped, therefore, the coil spring is immediately loosened to stop its rotation, cutting off the drive transmission from the wind-up shaft to the spoolshaft and thus causing the film advance to be stopped. With the aforesaid device, however, the power transmission from the wind-up shaft as a drive member to the spool shaft as a driven member is effected through the free end of the coil spring alone, the device thus posing a problem in durability. In other words, this device is constructed such that the spool shaft is rotated by the free end bent radially from the coil spring, and with a greater load applied to the spool shaft or after long use of the device, the bent end of the coil spring may be broken or deformed to disengage the spool shaft, thus disabling the power transmission.