Silver-tone stainless steel case and bracelet. Fixed stainless steel with a blue aluminium ring showing tachymeter markings bezel. Blue dial with luminous 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. Omega Calibre 1861 Hand Wind movement, containing 18 Jewels, composed of 234 parts, bitting at 21600 vph, and has a power reserve of approximately 48 hours. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape, case size: 42 mm, case thickness: 14 mm. Band width: 20 mm. Fold over clasp. Water resistant at 50 meters / 165 feet. Functions: chronograph, tachymeter, hour, minute, small second. Additional Info: limited to 2020 units. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Pre-owned Omega Speedmaster Chronograph Hand Wind Blue Dial Mens Watch 522.30.42.30.03.001.