Grand Seiko has introduced five new Spring Drive references to its Evolution 9 collection. The updates include improved accuracy, new materials, and a refined clasp design. The watches will become available worldwide in September 2026.
The five models carry references SLGB007, SLGB009, SLGB011, SLGB013, and SLGB015. They feature the 9RB2 caliber, which delivers an annual accuracy of plus or minus 20 seconds.
Four watches measure 40 mm in diameter while SLGB015 is sized at 37 mm. Materials include Ever-Brilliant Steel on four references and High-Intensity Titanium on the black-dial SLGB007.
A new three-step micro-adjustable clasp and tapered bracelet appear across the lineup. Prices start at 10,400 euros for the steel models and reach 11,700 euros for the titanium version.
The watches retain the Evolution 9 case architecture, textured dials, and 10-bar water resistance. They will be sold through Grand Seiko boutiques and selected retailers beginning in September.