Axiom's refined yet sleek design offers a day-to-night fashion options for the avid trendsetter. A watch with Eco-Drive technology, not just a solar watch but powered by any light, featuring a men's grey stainless steel case and bracelet with a black dial and the intriguing feature of edge-to-edge glass. Featuring our Eco-Drive technology - powered by light, any light. Never needs a battery. Caliber number E031. Show Less