Grand Seiko Heritage

Today, the pages turn again with the launch of a new high beat mechanical caliber, 9SA5, which, in its design and functionality represents an advance just as important as the first 9S. 9SA5 is more than just a new caliber. It is an entirely new movement and the foundation upon which a whole new generation of Grand Seiko mechanical watches will be created. Deploying all the skills and experience we have gained over the past 60 years, beyond doubt, the finest mechanical caliber that we have ever created.

Exterior
Exterior: 18k yellow gold
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 11.7mm
Band Material: Crocodile leather
Clasp type: Three-fold clasp with push button release

Movement
Movement Type: Automatic with manual winding