The Omega Speedmaster Professional Moonwatch Chronograph is a mechanical watch with a 42 mm stainless steel case and a brown dial. This chronograph, with its brown calfskin leather strap, offers a considered presence on the wrist. It is suitable for daily wear or more formal engagements, complementing both tailored attire and refined casual ensembles. Key details Brand: Omega Type: Mechanical watch Material: Stainless steel, Calfskin leather Movement: Manual-winding Caliber 1863 Reference: 311.32.42.30.13.001