Butterfly Fly Upgrade Multifunctional Model adopts the multifunctional 3836 movement, ensuring quality assurance. The side of the case features exquisite brushed craftsmanship. It has been widely imitated, but recognize the movement shown in the picture. Classic upgrade, elegantly popular Omega men's watch. Fully automatic mechanical movement, mineral reinforced glass, 316L stainless steel case, and stainless steel bracelet. Fashionable design for business and leisure. Dimensions: Diameter 40mm, Thickness 12mm. Exceptional product.