Grand Seiko · Evolution 9
Grand Seiko Evolution 9 GMT SLGA015 (reference SLGA015) — specifications, measurements, watch images and standardized wrist-fit previews for informed comparison.
A 43.8 mm high-intensity-titanium Evolution 9 diver with Spring Drive 9RA5, a five-day reserve and 200 m diver water resistance.
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Specifications last verified: 2026-08-14.
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