Seiko style #SRP777. Seiko automatic dive watch that has been nicknamed Turtle due to its cushion shape case. The watch is based on the very popular 6000 range of vintage Seiko dive watches. This new model features a Seiko 24 jewel automatic (4R36) movement, a date display, highly luminous hands and markers treated with Lumibrite for awesome low light visibility, a screw down offset crown, a uni-directional diving bezel with luminous PIP at 12:00, Hardlex mineral crystal and a solid etched, screw-down case back.