Automatic mechanical movement Calibre 3126/3840, power reserve approximately 50 hours, frequency of operation 21600 vph. Silver-tone stainless steel case with octagon shape and deployment clasp measuring 42 mm diameter and 14.6 mm thickness. Fixed black ceramic bezel featuring an 8-screw system. Grey rubber strap replacing the bracelet. Grey dial displaying analog time functions, marked by Arabic numerals at the hour positions and luminous-coated hands and markers for night readability. Includes date display at the three o'clock position. Tachymeter scale on the outer rim of the dial. Scratch resistant sapphire crystal. Screw-down crown protecting the movement. Transparent case back allowing view of the mechanism. Water resistant to 100 meters / 330 feet. Functions: chronograph, second hand, hour hand, minute hand, date display.