Grand Seiko Hi-Beat Rikka (Summer) (40.0 mm) Grand Seiko Hi-Beat GMT (40.2 mm)

Dimensions Compared

SpecGrand Seiko Hi-Beat Rikka (Summer)Grand Seiko Hi-Beat GMT
Diameter 40.0 mm 40.2 mm
Lug-to-Lug 47.0 mm 47.0 mm
Thickness 12.9 mm 14.4 mm
Lug Width 21 mm 20 mm
Weight N/A N/A
Material Stainless Steel Stainless Steel
Water Resistance 100 m 100 m
Movement Automatic (Hi-Beat 36000) Automatic (Hi-Beat 36000 GMT)
Power Reserve 55 hours 55 hours
MSRP $6,300 $7,600

Verdict

Both watches share a very similar 40.0 mm diameter, so they will wear nearly identically on the wrist in terms of width. The Grand Seiko Hi-Beat Rikka (Summer) wears thinner at 12.9 mm versus 14.4 mm, sitting closer to the wrist. At retail, the Grand Seiko Hi-Beat Rikka (Summer) is the more accessible option at $6,300 versus $7,600.

Where to Buy

Grand Seiko Hi-Beat Rikka (Summer)

Grand Seiko Hi-Beat GMT

Links may be affiliate links. See our affiliate disclosure.