Countdown time up to 60 minutes, with the twist of a dial
Ideal for cooking/baking at home to keep track of time
Using method: Every time you want to set a countdown alerting time, wind the time knob clockwise a full round from zero to zero; then turn the knob counterclockwise back to wanted setting time and everything is set
Size: 60 x 60 x 35mm
Weight: about 70g