Stainless steel case and bracelet, fixed bezel. Grey cut-away dial with silver-tone luminous hands and index hour markers, minute markers, tachymeter scale on outer rim. Analog display. Chronograph sub-dials (12hr, 30min). Zenith El Primero calibre 4061 automatic movement: column wheel, breguetienne, 31 jewels, approx. 50 hours power reserve, 36000 vph frequency. Sapphire crystal. Pull/push crown. Transparent case back. Round shape, 42mm diameter. Band width: 20mm. Fold over clasp with push button release. Water resistant up to 100 meters (330 ft). Functions include chronograph, tachymeter, hour, minute, small second.