I have seen a bunch of watches over the years that are mechanical action units where you don’t need to wind them and they don’t need batteries. These watches are the sort where the motion of your arms as you move around keeps the watch wound up. A new watch has surfaced that combines elements of that no-wind mechanism with a digital timepiece.
The watch is called the Sparc MGS by Ventura Watches. It has a LCD display on the face and above the watch face is another crystal that covers a little mechanical nano generator. The generator creates the power that is needed to run the watch when you move around.
It has a way to store the power that allows the watch to run for 45 days without moving. The face displays the time, date, and has dual time zone capability. It also has a LED backlight. The watch runs some sort of OS leaving the chance for upgrades open as well. The only bad part about his watch is that the black version you see here costs $5,500(USD).