The Butterfly Fly upgraded multifunctional model features a multifunctional 3836 movement, ensuring quality assurance. The side of the case is crafted with exquisite brushed finish, often imitated but never replicated. Recognize the movement in the image. Classic upgrade, elegantly popular Omega men's watch. Fully automatic mechanical movement with mineral reinforced glass, 316L stainless steel, and a stylish design suitable for both business and casual wear. Dimensions: Diameter 40mm, Thickness 12mm. Outstanding product.