Grand Seiko Heritage Kawagane Watch, 40mm Gray Dial, SBGA489

The second variation drawn from tamahagne is kawagane, a high-carbon steel used for the sharp outer edge of the blade. The carbon-rich beauty of kawagane is the inspiration for the black dial of the US Exclusive SBGA489. The dial pattern of the SBGA489 evokes the unique texture in the variations of tamahagane, otherwise known as “jewel” steel.