movement to use the material production quality! Domestic high-quality sweep clock movementt are commonly use ABS plastic material, because ABS plastic material has two advantages, 1. The material of environmental protection; 2. Smooth wear-resisting voice small machine core gear, shell stress is strong long life is not easy to aging.Movement using big plate circuit and the motor coil (full copper thick paint line), the benefit is that power is stable, not easy to burn machine, and low consumption and relatively long service life.Vibration level and choose a second semiconductor, crystal frequency: 32.768 KHz daily average poor: + 1 second/day, walking movement precision is high.

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