The Grand Seiko Evolution 9 Collection Spring Drive 5 Days Diver's 200m SLGA015G This is the Grand Seiko Diver’s watch to be powered by Spring Drive Caliber 9RA5 which offers an accuracy rate of +/-10 seconds per month and a five day power reserve. It is made from High-intensity Titanium, a material that is 30% lighter than stainless steel and even more impervious to scratches and corrosion. To further enhance its durability, the rotating bezel is in ceramic to protect the watch from being scratched. The dial is deep black in color and has a strongly patterned surface, inspired by a particular aspect of the oceans that surround the Japanese archipelago and that are criss-crossed by water currents of great power. Exterior Case Material High-intensity titanium Glass Material Sapphire crystal Glass Coating Anti-reflective coating on inner surface LumiBrite LumiBrite on hands, index(es) and bezel Case size Diameter 43.8mm Lug-to-lug 51.5mm Thickness 13.8mm Clasp type Three-fold clasp with secure lock & push button release, solid & slide adjuster Movement Caliber no. 9RA5 Movement Type Spring Drive Accuracy ±10 seconds per month (±0.5 second per day) Functions Water resistance 200m / 660ft diver's Magnetic resistance 4,800 A/m Other details / Features Case back with lion emblem Date display Power reserve indicator Screw case back Screw-down crown Stop second hand function Three-fold clasp with secure lock Unidirectional rotating bezel
