100% Wood. Hypo-allergenic. Completely free of toxic chemicals. Miyota movement. Adjustable to fit almost any wrist. 8 3/4 inch band. 1 9/16 x .5 inch face. Each WeWood watch is made from a real piece of wood therefore colors may be darker or lighter than the photo. The red wing celtis tree is often used for flooring and WeWood uses the remnant pieces that would otherwise be destroyed.