The sleek and sporty design of the 301.PB.131.RX from the Big Bang collection is a must-have for watch enthusiasts who love a luxurious pared-down design. The 301.PB.131.RX has a round-shaped Rose Gold case that is 44mm in diameter and 14.5mm thick with an exhibition case back. It comes with a scratch-resistant sapphire crystal and crown plus pushers and fixed ceramic bezel. It has a black dial with three sub-dials, a date window and Arabic numeral hour markers. The 301.PB.131.RX is powered by the self-winding HUB4100 caliber which has chronograph and date functionality with a power reserve of 42 hours. The case is paired with a black rubber bracelet with a rose gold fold-over clasp. It has a water resistance of 100 meters (330 feet).