Accurate Timing Measurements D017 Easy to Follow Extremely Durable High-Quality Super Convenient Extremely Versatile  Perfect for Everyday Use Operation Instructions: 1. Turn clockwise from 0 to 59. (Avoid exceeding 0 when winding up the alarm) 2. Turn counter-clockwise to set the alarm time. (For example, for a 15 minute alarm, turn it to 15) 3. Do not turn counter-clockwise directly as it will damage the mechanism.