Blancpain  5054-1110-70B
Blancpain, Fifty Fathoms series, model: 5054-1110-70B, automatic mechanical movement, satin brushed stainless steel, 43mm in diameter, transparent back design, popular grey dial, round hour markers with luminous display, 300 meters water-resistant, moon phase, date, day of the week, month, and annual calendar display, super rare steel strap version, complete set.