How Many Watch Movement Types Do You Know

Watch is not only a small gadget for watching the time, but also a kind of collection for some people.There are many brands of watches that are popular among people all over the world, but how many watch movement types do you know?

1.Mechanical chronographer (manual and automatic)
It needs to be winded manually or automatically (through the natural motion of the wrist).

2.Quartz chronographer
No necessity for winding, but will need battery replacements.

3.Automatic quartz or kinetic 
Automatic quartz watch movements combine a self-winding rotor mechanism (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the environmental impact of batteries.

4.Lithium-iodine (LID) batteries 
It is equipped with a special titanium lithium-ion secondary battery that is charged by an amorphous silicon solar cell located behind the dial. Depending on the electronic movement model, a fully-charged secondary power cell could run with no further charging anywhere from 30 days to 3,175 days (8.7 years).

5.Eco drive movement Thermo
Citizen Eco-Drive Thermo watches were introduced in 1999 and use the temperature difference between the wearer’s arm and the surrounding environment as a power source