For sale is an Omega Seamaster 300 Master Co-Axial Steel and Rose Gold watch with reference 233.20.41.21.01.001. Automatic self-winding movement with Co-Axial escapement, resistant to magnetic fields greater than 15,000 gauss. Free sprung-balance with silicon balance spring, two barrels mounted in series, automatic winding in both directions to reduce winding time. Bridges and the oscillating weight are decorated with exclusive Geneva waves in arabesque. 60 hours power reserve. Calibre 8400.