Omega gents seamaster ploprof 1200 m omega co axial master chronometer 55 x 48 mm reliable even at 4000 feet beneath the waves the famous ploprof timepiece has a long history as omegas most water resistant divers watch movement self winding movement with co axial escapementtitanium on titanium power reserve 60 hours case titaniumcase diameter 55 x 48 mmdial blackwater resistance 120 bar 1200 metres 4000 feetbi directional rotating bezel