5
References
37.0 mm
Min Diameter
41.0 mm
Max Diameter
10.0-14.4 mm
Thickness Range

All Heritage References

Reference Name Diameter L2L Thickness Lug Width Material WR
SBGA413 Grand Seiko Shunbun (Spring) 40.0 mm 47.0 mm 12.8 mm 20 mm High-Intensity Titanium 100 m
SBGA211 Grand Seiko Snowflake 41.0 mm 48.4 mm 12.5 mm 20 mm High-Intensity Titanium 100 m
SBGH271 Grand Seiko Hi-Beat Rikka (Summer) 40.0 mm 47.0 mm 12.9 mm 21 mm Stainless Steel 100 m
SBGX261 Grand Seiko Quartz 37.0 mm 44.6 mm 10.0 mm 19 mm Stainless Steel 100 m
SBGJ237 Grand Seiko Hi-Beat GMT 40.2 mm 47.0 mm 14.4 mm 20 mm Stainless Steel 100 m