Skeleton dial, black hands, Arabic numeral hour markers, minute outer ring markers; analog chronograph with two sub-dials (60 seconds and minutes); Hublot Calibre HUB1242 UNICO Automatic movement; 38 Jewels, 330 parts construction, beats at 28800 vph frequency; approximately 72-hour power reserve. Fixed transparent sapphire crystal bezel. Scratch-resistant sapphire crystal main display. Screw-down crown. Skeleton/transparent exhibition case back revealing the movement. Round case shape measuring 45 mm in diameter. Black rubber strap, limited edition (500 pieces), Swiss Made.