This Grand Seiko Diver’s watch is powered by Spring Drive Caliber 9RA5 which offers an accuracy rate of ±10 seconds per month and a five day power reserve. The dial is deep black in color and has a strongly patterned surface, inspired by the Kuroshio Current - Black Stream.
Screw case back
Approx. 120 hours(5 days)
Movement and Functions
Unidirectional rotating bezel Screw-down crown Three-fold clasp with secure lock Power reserve indicator