Engineer Master II Diver. Automatic movement ETA Caliber 2836-2, Cold temperature endurance to -40C, Functions (hours, minutes, sweep seconds, day and date, 53 micro gas tubes on hour, minute, second hands and dial for night reading capability). Stainless steel case (42mm diameter and 14.9mm height), Anti-reflective convex sapphire crystal, Screw-in crown, Shock resistant to 5000Gs, 300 meter water resistant, Anti-magnetic to 4800 A/m. COMPLETE BOX & CERT DATED 9 Sept 2011.