When shopping for a new minimalist watch for yourself or a gift, it's not just how good it looks, it's what's inside that counts. All Simple Watch co. watches are built with Sapphire Crystal Glass; that's the hardest & most scratch resistant glass, as used by Rolex & all the premium Swiss brands. Under the hood, our watches run on durable, high quality, battery powered movement. There's 2 types of movement we use, Miyota Japanese Quartz movement (used in the Explore, Earl & Kent) or Swiss Quartz movement (used in the Dixon). Do your watch research & keep an eye out for cool details like NATO straps & screw down crowns.