Inside: We have fitted The Slab Skate Watch with a Miyota 8215 automatic (mechanical) movement, making it the first automatic wooden watch. This means that you never have to worry about changing batteries because it's powered by kinetic energy. The watch runs for up to two days when not in use. The movement also has a self-wind. The Miyota 8215 movement is used by many reputable companies including Citizen, Invicta, and Jacques Le Mans. It's a quality movement. Outside: The Skate Watch is made from seven-ply, repurposed skateboard wood. It is black with natural maple accents and looks stunning. We decided to make a skateboard watch because of its durability. The flexibility and strength of seven-ply maple makes skateboard wood the perfect material to repurpose . It also gives us the ability for endless color variations moving forward while creating a unique look. The Skate Watch also features a Miyota 8215 movement, a textured face, a glow in the dark dial and the same heirloom quality.