Grand Seiko Heritage
Ever Brilliant Steel Case back: Ever Brilliant Steel and sapphire glass
Case back specifications:
Screw-type see-through case back
Glass material:
Dual curved sapphire
Coating:
Anti-reflective coating on the inside
Case size:
Width 37.0mm Height 44.6mm Thickness 13.3mm
Band width:
19mm
Clasp:
One-push three-fold type
Wrist circumference (maximum):
192mm
Movement:
Mechanical automatic winding (with manual winding)