[Famous Craftsman Swiss Watches] Jet Black Seamaster, Unruly Appearance Omega OMEGA Seamaster Series 300 Meter Jet Black Watch! CM1 1 The bezel and dial are made of black zirconium oxide 1Zr021 ceramic. 2 The hollow hands and the dot at 12 o'clock are covered with Super-LumiNova luminous coating. 3 The beauty of the movement is clearly visible. Through the use of The sapphire glass case back with corrugated edge design allows you to admire the 8806 custom movement. The famous craftsman Swiss Watch recommends men’s mechanical watches.