Height: Approximately 24.5 cm Width: Approximately 14.5 cm Spring-powered (no battery required) It appears to have been manufactured around 1960, but the details are unknown. Manually move the hands to the desired position, and when the knob on the lower left is set to START, it clicks. When the time is up, it should ring with a "Jiriririri..." sound, but this one only rings with a short "Jiri." The dial seems to have been treated with fluorescent material, making it visible in the dark for a while. It has been left unused for many years. There are stains on the dial that cannot be removed. The surface of the bell is peeling. There is a crack on the top of the main body, and there is dirt that cannot be completely removed. Please check the images. Operation has been confirmed, but the accuracy of the timer cannot be guaranteed.