Grand Seiko Evolution Diver's 200m SLGA015G

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. 


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

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


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