Grand Seiko SBGW231 Lug Width & Strap Size
Grand Seiko SBGW231 watches have 19mm lugs and are compatible with 19mm watch bands.
Grand Seiko SBGW231 case size is 37.3mm in diameter.
You can shop our entire collection of 19mm watch bands for Grand Seiko SBGW231 with the link below. Please select size 19mm to ensure compatibility with your Grand Seiko SBGW231.