Retro Clocks Wallpapers HD

此文件夾被稱為“復古時鐘”，因為它包含了所有類型的時鐘

Retro Clocks wallpapers

This folder is called "retro clocks" because it contains all types of clocks that have ever shown up in the history,

from sand and sun clocks to first digital clocks.

As the time has gone by everything has become more and more sophisticated and so have the clocks. You can see that progress through this pictures.

It's not only the clocks that we see, it's the development of human creativity and knowledge.