The Grand Seiko Evolution 9 Collection Spring Drive 5 Days Diver's 200m
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. 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. One such is the Kuroshio Current, also known as the Black Stream. It flows northwards past Japan towards the Arctic North Pacific and is one of the largest ocean streams in the world. The dynamic and sometimes violent tides caused by the Black Stream inspire the deep black color and richly textured surface of the dial of this new 200m diver’s watch.

SPECIFICATIONS

Exterior
Exterior: High-intensity titanium
Case back: Screw case back
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
Band width: 23mm
Clasp type: Three-fold clasp with secure lock & push button release, solid & slide adjuster
The perimeter of Band: 185mm

Movement
Caliber no.: 9RA5 Instructions
Movement Type: Spring Drive
Accuracy: ±10 seconds per month (±0.5 second per day)

Functions
Magnetic resistance: 4,800 A/m
Other details / Features:
Unidirectional rotating bezel
Screw-down crown
Three-fold clasp with secure lock
Power reserve indicator