Grand Seiko SBGR305 Lug Width & Strap Size

Grand Seiko SBGR305 watches have 20mm lugs and are compatible with 20mm watch bands.

Grand Seiko SBGR305 case size is 40.5mm in diameter.

You can shop our entire collection of 20mm watch bands for Grand Seiko SBGR305 with the link below. Please select size 20mm to ensure compatibility with your Grand Seiko SBGR305.