Chiworld Multicolour LED Dial Digital Mens Sports Watch/ Lady Watch / Wrist Watch LW-LW001038 Four adjustable brightness with multicolour led color for Time,Day, month and Week display Power Saving Design: 3 seconds off automatically Case Material: Stainless-Steel; Case Diameter: 4.2cm; Case Thickness: 1cm Band Material: Metal, Length: 22cm(include the watch) Water Resistant: Not waterproof