The Biggest disadvantage I hear to the Omega Seamaster 300m is the helium escape valve. For a few it’s just much too bulky or they need it wasn’t there at all. With its distinct scalloped bezel, helium escape valve, and wave-patterned dial, the Seamaster Diver 300m's ocean-encouraged aesthetic grew to https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/