The OMEGA Seamaster 300 Co-Axial Master Chronometer, reference 234.30.41.21.01.001, is a 41 mm stainless steel dive watch featuring a black dial and bezel with vintage-style Super-Luminova indexes. Sold in 2023 in Asia, it comes as a full set with its original box and papers. Powered by the Caliber 8912, it offers a 60-hour power reserve and exceptional precision. Water-resistant up to 300 meters, this watch combines OMEGA's rich maritime heritage with advanced watchmaking technology.