Movement ? Automatic caliber BALL RR1102 Functions ? 52 micro gas tubes on hour, minute, second hands and dial for night reading capability ? Illuminated unidirectional rotating inner bezel ? Hours, minutes, sweep seconds, day and date Shock resistance ? 5,000Gs Antimagnetic ? 4,800A/m Water resistance ? 300m / 1000ft Case ? Stainless steel ? ? 42mm, height 14.55mm ? Top unidirectional rotating bezel ? Anti-reflective sapphire crystal ? Screwed-in crown Band ? Stainless steel bracelet with folding buckle or rubber strap with standard buckle Dial ? Black with white inner bezel zdroj: http://www.ballwatch.com/global/en/collections/engineer-master-ii---6/diver---dm3020a-saj-bk---1847.html