Thank you for looking. This item is a GS Grand Seiko Leather band strap and D-buckle set. The color of the band and stitching is navy blue. (Please check the photos for color confirmation.) The lug width (the width where the band connects to the watch) is 22mm. This is an unused, non-sale item received as a novelty when purchasing the SLGA021 (Minamo model). The embossed pattern on the belt is a special leather strap designed to match the water surface pattern on the dial. Although I received it, I don't think I will use it, so if you are interested, please consider this opportunity. Regarding installation, I believe the nearest watch shop will be able to replace it for a fee. To prevent any issues such as swapping, returns and exchanges are not accepted. Although it is a new, unused item, please understand that it is a used item that has been stored at home before purchasing. GS Grand Seiko Leather band strap and D-buckle set The band and stitching are both navy blue. (See photos for color reference.) The lug width (the width where the band joins the watch) is 22mm. I received it, but I don't think I'll be using it, so if you're interested, please consider this opportunity. Although this is a new, unused item, please be aware that it is a used item that has been stored at home. Color: Blue