Silver-tone stainless steel case, black rubber strap, fixed silver-tone bezel. Black skeletal window dial featuring silver-tone hands and index markers with luminous coating for illumination. Minute markers are present along the perimeter; tachymeter scale decorates the outer rim of the dial. Analog dial type includes central hour, minute, small second hands. The chronograph sub-dials show 12 hours and 30 minutes respectively. Powered by a Zenith Calibre El Primero 4061 automatic movement derived from the El Primero 400 family base with 31 jewels, comprising approximately 282 parts, beating at 36000 vph (60Hz), offering about 50 hours power reserve. Equipped with a scratch-resistant sapphire crystal glass and features an automatic winding system. A pull/push crown is used for time adjustment; the transparent case back allows visibility of the mechanical movement inside. The round watch case measures 42mm in diameter and has a thickness of 12.75 mm. It boasts water resistance to depths of 100 meters (330 feet). Functions include chronograph, hour, minute display, column wheel mechanism, and its Swiss Made label signifies luxury. This men's analog watch with tachymeter is part of the Chronomaster El Primero collection.