Influenced by the materials and craft of the blade. All three models are made of stainless steel and measure 40mm in diameter, 12.5mm in thickness, and 46.2mm in length. Each features a stainless-steel bracelet with a three-fold clasp, a dual curve sapphire crystal, and an exhibition case back revealing the Spring Drive Automatic Caliber 9R65.

Discover the Exquisite Spring Drive SBGA493: Pulling inspiration from the forge itself, its deep red color and yellow gold-tone accents are influenced by the heated blade during the forging process.

Explore the beauty and texture of "jewel" steel with the SBGA489's black dial, a tribute to Kawagane's carbon-rich elegance.

The resilience and strength of shingane is represented in the dark green dial of SBGA491. The dial pattern evokes the unique texture in the variations of tamahagane, the “jewel” steel.