The Hublot Big Bang Chronograph Automatic is a luxury Swiss Made men's watch from the iconic Big Bang Series, model number 421.OX.1180.RX. It features an elegant rose gold-tone case crafted from 18kt rose gold and paired with a black rubber strap for comfort. The fixed bezel also has a rose gold-tone finish matching the case material. A transparent sapphire crystal protects the dial, which is analog displaying hours, minutes, and seconds marked by rose gold-tone hands and Arabic numeral markers alongside luminous index hour indicators. Minute indexes and minute markers are present around the outer rim of the sub-dials. The date display appears at the 3 o'clock position through a small aperture lens. Equipped with chronograph functions including two sub-dials for 60 seconds and 60 minutes respectively, along with hours, minutes, and seconds. This watch utilizes Hublot's Calibre HUB1280 automatic movement containing 43 jewels, composed of 354 parts, operating at a frequency of 28800 vph (beats per hour), offering an approximate power reserve of 72 hours. The sapphire crystal is scratch resistant for the transparent elements. It has a screw down crown and a transparent case back allowing visibility of the movement inside. Functions include chronograph, date display, hour hand, minute hand, second hand. The round case measures 44 mm in diameter. Water resistance reaches up to 100 meters / 330 feet.