Grey titanium case with a black nylon strap. Fixed grey titanium bezel. Black dial with silver-tone hands and index and Arabic numeral hour markers, minute markers on the outer rim hour markers. Tachymeter scale around the outer rim. Dial Type: Analog. Luminescent hands and markers. Chronograph - two sub-dials displaying: 60 second and 30 minute. IWC Calibre 79350 Automatic movement, based upon ETA 7750, containing 31 Jewels, bitting at 28800 vph, and has a power reserve of approximately 44 hours. Scratch resistant sapphire crystal. Titanium screw-down crown. Titanium - with iwc/amg engraving case back. Round case shape, case size: 42.5 mm, case thickness: 13.5 mm. Tang clasp. Water resistant at 20 meters / 65 feet. Functions: hours, minutes, subsidiary seconds (6 o'clock), chronograph. Additional Info: integrated shock-absorbing system; 44-hour power reserve; screw-in crown. Ingenieur Chronograph Amg Series. Sport watch style. Watch label: Swiss Made. Item Variations: 3725-04, 3725/04, 372504, IWC-3725-04 IW372504, 3725-04, 3725/04, 372504, IWC-37. IWC Ingenieur Chronograph AMG Titanium Black Men's Watch IW372504.