Omega Seamaster Planet Ocean Professional 188.8.131.52.03.001. Steel 45.5mm case which is water resistant to 600 meters. Self winding chronograph with column wheel and co-axil escapement, Omega Calibre 9900. 60 hour power reserve. Blue dial with uni-directional blue bezel. Date display at the 6 o'clock position. Blue croc leather and rubber strap with deployment clasp. Box and papers dated November 2016.