The quartz alarm clock can also be called a “crystal vibration electronic watch” because it uses the “vibration phenomenon” of the crystal wafer. When the crystal receives the external force voltage, it will have the property of deformation and expansion. On the contrary, if the crystal is compressed, it will generate electricity at both ends…
In 1088, the Song Dynasty scientists Su Shi and Han Gonglian and others made the water transport instrument platform, which is a device that combines funeral, scorpion and mechanical timers. It uses hydraulic power as the power source and has a scientific escapement. It is about 12 meters high and seven meters square. It is…
Before 1300 AD, humans mainly used astronomical phenomena and continuous movement of flowing materials to time. For example, the sundial is the azimuth timing of the sunshade; the leaking pot and the hourglass are flow meters that utilize water flow and sand flow. In the Eastern Han Dynasty, Zhang Heng made a leaking water switch…
The alarm clock is a clock with a device. It can indicate the time and can send an audible signal or another signal at the time when people order. The movement structure of the alarm clock is mainly composed of mechanical and quartz electronic. Other types such as transistor balance springs, tuning forks and the…
PRODUCTION DETAILS PRODUCT NAME Scanning wall clock movement BRAND THN WEIGHT 25g/pcs MATERIAL Plastic ACCURACY ±1sec/day at 1.5V, 23°C MOQ 100set COLOR Black、white、red、golden PRODUCTION CYCLE 10days SHIPMENT PORT SHANGHAI,NINGBO DELIVERY TIME Within 15 or 30 days based on different quantity FEATURES The materials used in the watch movement are ABS environmentally friendly raw…
PRODUCTION DETAILS PRODUCT NAME Silent scanning movement BRAND THN WEIGHT 25g/pcs MATERIAL Plastic ACCURACY ±30Sec/Month(1.5V DC. 25℃) MOQ 100set COLOR Black、white、red、golden PRODUCTION CYCLE 10days SHIPMENT PORT SHANGHAI,NINGBO DELIVERY TIME Within 15 or 30 days based on different quantity FEATURES The materials used in the watch movement are ABS environmentally friendly raw…
PRODUCTION DETAILS PRODUCT NAME Jumping clock mechanism BRAND THN WEIGHT 22g/pcs MATERIAL Plastic ACCURACY ±2 seconds / day, 1.5V, 23 ° C MOQ 100set COLOR Black、white、red、golden PRODUCTION CYCLE 10days SHIPMENT PORT SHANGHAI,NINGBO DELIVERY TIME Within 15 or 30 days based on different quantity FEATURES Fine workmanship, precision gears, copper coils, low power consumption,…
We can shipping to over 200 countries, if you have shipping company you can arrange with them, let them contact us, if you need us arrange shipment we also can do for you. Shipping by sea need 15~35days to most country. Afghanistan Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia…
PRODUCTION DETAILS PRODUCT NAME Colorful mood alarm clock BRAND THN SIZE 10.3*9.5CM（Can be customized） MATERIAL Plastic SHAPE triangle MOQ 100set COLOR As your requirements(ex.Red, white, black, blue, purple, brown, camel, green, yellow…) PRODUCTION CYCLE 10days SHIPMENT PORT SHANGHAI,NINGBO DELIVERY TIME Within 15 or 30 days based on different quantity FEATURES Led colorful…
