The Seiko Men's Prospex Black Series Limited Edition SRPH97 is a watch that was originally inspired by night diving. It has a 43.8mm x 12.8mm black hardcoated stainless steel case, sapphire crystal, ceramic unidirectional bezel, and 200m water-resistance. The watch has green lumibrite coloring on the markers and hands for increased visibility in the dark. It has a black silicone strap and is automatic with a 3Hz, 41h power. It is in mint condition and barely worn. Comes with all original packaging as well as an extra strap that matches the green in the dial perfectly.