Pre-owned Black ceramic case with a black fabric strap, fixed black ceramic bezel showing tachymeter markings, black dial featuring luminous silver-tone hands and index hour markers including minute markers around the outer rim. Analog dial type equipped with luminescent hands and markers for night readability. Date display located at the 6 o'clock position. Chronograph functions include a central chronograph hand displaying elapsed minutes or hours (30-second scale visible) alongside seconds sub-dial. Powered by Omega Calibre 9300 Automatic movement, this contains 54 jewels, consists of 337 parts, operates at 28800 vph and offers an approximate power reserve of 60 hours. Features a scratch-resistant sapphire crystal glass face and is fitted with a pull/push crown for time setting and bezel adjustment. The transparent case back allows view of the automatic movement and mentions engraving on the case back: "dark side of the moon - si 14 - zro2". Round case shape measuring 44.25 mm in diameter and 13.25 mm thick, band width is 22.9 mm with a length suitable for approximately 9 inches (likely standard NATO fit). Secured by a tang clasp system. Rated water resistant to 50 meters / 165 feet depth. Functions include chronograph, date, hour, minute, second, chronometer, and tachymeter capabilities. This Speedmaster Co-Axial Chronograph model is presented in an analog style with casual wear intended. Swiss Made label present as expected for authentic Omega timepieces.