Silver-tone stainless steel case and bracelet. Fixed tachymeter scale black stainless steel bezel. Black dial with silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Hand wind movement. Solid case back. Round case shape, case size: 42 mm. Fold over clasp with a safety release. Functions: chronograph, hour, minute, second. Additional Info: year of production 1981. Speedmaster Professional Moonwatch Series. Sport watch style. Watch label: Swiss Made. Pre-owned Omega Speedmaster Professional Moonwatch Chronograph Hand Wind Black Dial Mens Watch 145.022.