Engineer Master II Diver Chronograph, Box & Cert Dated June 2015. Automatic caliber ETA 7750 Functions: Single button chronograph (operable underwater to 100m), accumulated measurement up to 12 hours, illuminated inner rotating bezel, hours, minutes, subsidiary seconds, day and date; 56 micro gas tubes on dial, bezel and hands for night readability Shock Resistant: 5,000Gs. Water Resistant: 100m. Magnetic Resistant: 4,800A/m Case: 43.8mm diameter stainless steel, 16.3mm height, Fixed with inner rotating bezel, Anti-reflective convex sapphire crystal, Screwed-in crown. Retail Price $4950.