Model: 131.20.29.20.02.002. Brand New Authentic Omega Constellation Manhattan Chronometer watch features a silver dial accented by yellow gold hands and index hour markers. The case is crafted from yellow gold combined with stainless steel, finished with both brushed and polished surfaces. Equipped with a deployment push button foldover clasp closure system. Movement: Automatic Chronometer Calibre 8700 offering high precision and approximately 50 hours power reserve. Functions include Date display, Hour, Minute, Second hands, and Power Reserve indicator. Fixed bezel design complements the elegant silver dial description. Round case shape measures 29mm in diameter. Secured by a transparent sapphire crystal glass with anti-scratch properties. Water resistant up to 50 meters (approximately 165 feet). Backed by an official 5 year Omega WatchMaxx warranty.