A Rolex men's watch, model 116503bkso (also listed as 116503-78590), combining steel and yellow gold. Features a stainless steel case with an 18K yellow gold bracelet featuring center links; fixed bezel in 18K yellow gold displaying tachymeter scale, black dial accented by luminous stick hour markers and yellow gold-tone hands, analog display showing hours, minutes, seconds, along with chronometer functionality including subdials for minutes, hours (up to 30), and a central second hand. Powered by Rolex Calibre 4130 automatic movement ensuring precision timekeeping and offering up to 72-hour power reserve. Equipped with sapphire crystal for scratch resistance, screw-down crown, Oysterlock clasp, water resistant at 100 meters / 330 feet.
