Grand Seiko Heritage
Exterior
Exterior: Ever brilliant steel, Caseback: Ever brilliant steel and sapphire crystal
Case back: See-through & Screw case back
Glass Material: Box shaped sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 40.0mm Lug-to-lug 47.0mm Thickness 12.9mm
Band width: 21mm
Movement
Caliber no.: 9S85 Instructions
Movement Type: Automatic with manual winding