Swiss ISA 8171 Chronograph Movement; All stainless steel; Date at 4:00; Luminous hands; Domed Sphereulite crystal; 30 Minute counter sub dial at 9:00 Seconds sub dial at 3:00; Date sub dial at 6:00;16.35mm thick; Rotating bezel; 26mm tapering stainless steel & silicon bracelet; Deployment clasp with push buttons; water resistant to 165' - 5 ATM Quartz Movement Case Diameter: 48mm Water Resistant To 165 Feet