Imported. ?Big Face Watch Use Adopts a Japanese Quartz Movement With Stable Quality.Uses High Quality Antireflective Durable Coatings Dial Window to Prevent Scratches and Breaks. ? Unique sports chronograph offers three multi-function sub-dials that can be used for chronograph minutes 24-hour hands and flywheel sports seconds for a versatile use. ? When you need your watch to luminous Please Illuminate the Watch Under the Strong Light for 30 Seconds to Activate the Luminous Function.Giving you a new visual experience at night. ? Mirror Diameter 1.6Inches(41MM)Case Thickness 0.43 Inches(11MM) Band Length:7.0Inches (180MM)-The length of the watch can be adjustedWeight 132G(4.6ounces)Water Resistant To 30m (330 Ft). ?The watch has a warranty serviceif the watches have any quality problemsPlease don’t worry email us at any time to contact the seller we will solve any problems for you?.