Stainless steel case, blue synthetic fabric strap (fixed). Anthracite grey dial featuring luminous silver-tone hands and index hour markers including minute markers and tachymeter at the outer rim. Analog dial type with luminescent elements for hours and minutes, date display at 6 o'clock. Chronograph functions include three sub-dials: second, minute, and hour; column wheel mechanism. Powered by Zenith calibre El Primero 400 automatic movement (31 jewels) composed of 278 parts beating at 36,000 vph with approximately 50-hour power reserve. Scratch-resistant sapphire crystal. Pull/push crown, transparent case back; round shape measuring 42 mm in diameter and 12.75 mm thick secured by deployment clasp. Water resistant to 100 meters / 330 feet. Includes tachymeter, date function.