Diesel's 48mm Mega Chief Slim watch features a sunray gradient dial in black and brown, chronograph movement, and a brown leather strap attachment. Material and Details : • Dial Color: Two Tone • Case Diameter [mm]: 48 MM • Case Thickness: 10 MM • Case Material: Stainless Steel • Strap Closure: Single Prong Strap Buckle • Movement Type: Quartz