Silver-tone stainless steel case, bracelet width approximately 20 mm. Fixed silver-tone stainless steel bezel featuring a red aluminium ring with tachymeter markings. Silver dial equipped with luminous silver-tone hands and index hour markers. Minute markers present on the outer rim. Analog dial type. Three sub-dials: one for 60 second, one for 30 minute, one for 12 hour chronograph function. Powered by Omega Calibre 1861 Hand Wind mechanical movement with 18 Jewels and approximately 234 parts beating at 21600 vph frequency offering a power reserve of about 48 hours. Scratch resistant sapphire crystal lens. Screw-down winding crown. Solid case back. Classic round case shape measuring 42 mm in diameter and having a thickness of roughly 14 mm. Fold over clasp closure system with solid extension. Water resistance up to approximately 50 meters or 165 feet depth suitable for shallow water activities only. Functions include chronograph, tachymeter, hour, minute, small second hand.