|Citizen Eco Drive|
A proprietary technology developed by Citizen Watches, Eco-drive is unique as a watch power source that relies purely on light energy rather than batteries. Due to the fact that no Eco-Drive watches require batteries, the technology is completely "green". It also means that the watch will run indefinitely.
It also means that the dangers of having a small case of acid inside a delicate time-piece are removed. No battery means no chance of acid leaking and damaging the movement. It also means that it never needs a battery change, so once it's on your wrist it will never need to come off again.
The dial on each watch acts as a solar panel, converting all light - not just sunlight - in to electricity. This is then stored in an internal capacitor, allowing the watch to keep running even when there is no light. Combined with exquisite designs from simple and traditional 2- and 3-hand watches, the range has evolved to include a collection of easy to use timepieces combining analogue and digital capabilities which can be controlled by radio signals - meaning they update the time automatically and never need adjustment.
To top that all off, the watches come with a 5 year manufacturers warranty - a testament to the exceptional levels of engineering used to create these fantastic time pieces.