In 2011, a few years after the introduction of its in-house-developed-and-produced Caliber 8500-family of movements, Omega introduced the Caliber 9300 chronograph movement, which was also entirely developed and manufactured in-house. This impressively large caliber has the brand’s renowned co-axial escapement, a column-wheel mechanism, and a silicon balance spring. The movement has a 60-hour power reserve.…