SETTING THE MECHANICAL ONE HOUR TIMER Wind the timer clockwise, all the way to 60 minutes STOP. This action fully winds the ringer. Twist timer back anti-clockwise to required time setting. Note: If you do not fully wind timer, you will only get a short ring. - Material : Plastic - Accuracy : Average daily difference ± 2 seconds. *Due to the structure of the analog clock, an error within ± 2 ° will occur in the display of all hands. - Made in China Size Length Width Thick ness Weight One Size 12.4" 8.5" 2.6" 16.9oz"
