Movement Automatic caliber BALL RR1103 Functions 14 micro gas tubes on hour and minute hands and dial for night reading capability Shock resistant to 5,000Gs Water resistant to 100m/330ft Hours, minutes, sweep seconds and date Case Stainless steel Ø 40mm, height 11.6mm Anti-reflective sapphire crystal Screwed-in crown Band Stainless steel bracelet Dial Black