Features: Stainless Steel And Aluminum Case Silicone Strap Quartz Movement Caliber: VD53 Mineral Crystal Blue Dial Analog Display GMT Chronograph Function 12/24 Hours Display Luminous Hands Date Display Pull/Push Crown Screwed Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 51.00 mm Approximate Case Thickness: 15.20 mm