2 PCS HR1688 Quartz Clock Mechanism Movement,Spec: 8mm

HR1688 Quartz Clock Mechanism Movement is designed for DIY clock projects. It provides accurate timekeeping with low noise operation.

• Product type: DIY Clocks
• Compatibility: HR1688 Quartz Clock Mechanism
• Material: Nylon
• Key feature: Low noise and long service life
• Crystal frequency: 32.768KHz
• Time accuracy: +/-30Sec/Month (1.5V DC, 25 degrees Celsius)
• Current consumption: Less than 130μA (1.5V DC)
• Operating voltage: 1.3v to 1.7v
• Operating temperature: -10 to 50 degrees Celsius
• Power supply: 1.5v AA batteries (batteries are not included)
• Weight: approximate 25g/PC
• Second hand output torque: less than or equal to 0.6gf-cm (1.5V)
• Minute hand output torque: less than or equal to 30gf-cm (1.5V)
• Pointer specification requirements:
• -Second hand length/weight: less than or equal to 130mm, less than or equal to 2g
• -Minute hand length/weight: less than or equal to 200mm, less than or equal to 6g
• -Second hand unbalance torque: less than or equal to 0.15gf-cm
• -Minute hand unbalance torque: less than or equal to 6gf-cm
• Movement battery slot is generally not equipped with a battery cover
• Includes gold hexagonal plane nut, gold washer, black rubber pad