This is the Citizen Promaster Tough Super Titanium E168-S113482/ GN-4W-UL, a limited variant of the iconic Promaster series (BN0118-04E/ BN0118-55E). EXCELLENT CITIZEN LIMITED MONT-BELL PROMASTER TOUGH SUPER TITANIUM E168-S113482 GN-4W-UL ECO-DRIVE SOLAR ULTIMATE FIELD WATCH SAPPHIRE TITANIUM SCREW DOWN CROWN 200M WR (VARIANT OF BN0118-04E/ BN0118-55E) GREEN.