heechang watch
grand-seiko
Jun 25, 2026
Evolution 9 (e.g., SLGA021)

Evolution 9 (e.g., SLGA021)

Grand Seiko's Evolution 9 line features ultra-refined titanium cases and Spring Drive movements with the brand's highest-tier surface polishing; dials reflect specific natural landscapes of Japan.

Specifications

Reference
SLGA021
Collection
Evolution 9
Case size
40.5 mm
Thickness
11.2 mm
Lug width
21 mm
Case
Titanium
Movement
9RA2, Spring Drive automatic, 28,800 vph, 72h power reserve, ±0.5 sec/day
Water resist.
100 m
Complications
Time-only with date
Dial
Textured nebula-inspired dial reflecting Japanese natural landscapes, high-polish titanium case with Zaratsu finishing on lugs and bezel
Country
Japan
My tier
1
Tags
Sports
Website
official page
Added
Jun 25, 2026

More from Evolution 9

Spring Drive U.F.A. SLGB003