Eco Drive.

A close-up test using a non-macro lens....it took many attempts before I managed to get a good shot without too many reflections. I don't know if this will really "run forever" (as claimed by Argos) but it will probably outlive me.....it has already outlived three watch-straps :-)

"A simple yet revolutionary concept: a watch that never needs a battery. Citizen Eco-Drive technology harnesses the power of light from any natural or artificial light source and converts it into energy which is stored in a permanently rechargeable lithium-ion cell. It recharges continuously in any kind of light to run forever."
(Argos advertisement).

www.argos.co.uk/product/9157332

Camera: Nikon D500
Lens: AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED
Software: Nikon Capture NX2