Omega 231.10.42.21.01.006
Omega Seamaster 150 series, model: 231.10.42.21.01.006, Rio Olympics Special Edition, 41.5mm case diameter, black dial covered with Rio Olympics logos, 18K gold hour markers, luminous display, ultra-thin design, made of brushed stainless steel, equipped with a back-transparent AT8500 co-axial movement, stainless steel strap, 150-meter water resistance!