Omega 215.32.46.51.01.004
Omega, Seamaster series, model: 215.32.46.51.01.004, case diameter: 45.5mm, cement grey dial, luminous hour markers, dual sub-dial chronograph function, date display, grey ceramic unidirectional rotating chronograph bezel, stainless steel with helium release valve, equipped with self-winding 9900 Master Chronometer co-axial automatic movement with transparent back, sapphire crystal with Seamaster logo, 600 meters water-resistant.