Grand Seiko
Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021
The Grand Seiko Evolution 9 Hi-Beat 36000 green river texture (reference SLGH021) is a 40 mm Ever-Brilliant steel watch with a green dial. It runs on the caliber 9SA5. It was introduced in 2024.
Specifications
Case
- Reference
- SLGH021
- Collection
- Evolution 9
- Case size
- 40 mm
- Thickness
- 11.7 mm
- Case material
- Ever-Brilliant steel
Dial and bezel
- Dial
- Green
Movement
- Caliber
- 9SA5
Production
- Production
- 2024 – today
- Limited edition
- 1,000 pieces
Dial versions
This reference was made with these dials and finishes.
SLGH021 Green
Green river texture
How it compares within the Evolution 9 family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| SLGH021 (This watch) | 40 mm | Ever-Brilliant steel | Green | 9SA5 | 2024– |
| SLGB007 | 40 mm | Titanium | Black | 9RB2 | 2026– |
| SLGB009 | 40 mm | Ever-Brilliant Steel | White | 9RB2 | 2026– |
| SLGB011 | 40 mm | Ever-Brilliant Steel | Blue-green | 9RB2 | 2026– |
| SLGB013 | 40 mm | Ever-Brilliant Steel | Blue | 9RB2 | 2026– |
| SLGB015 | 37 mm | Ever-Brilliant Steel | Blue | 9RB2 | 2026– |
| SLGB023 | 40.8 mm | High-intensity titanium | Blue | 9RB1 | 2026– |
| SLGB025 | 40.8 mm | High-intensity titanium | Green | 9RB1 | 2026– |
| SLGC015 | 43 mm | Brilliant Hard Titanium | Blue | 9SC5 | 2026– |
About the Evolution 9 family
Evolution 9 is the design language Grand Seiko introduced in 2020, alongside the high-beat caliber 9SA5, as a modern development of the Grand Seiko Style: a thinner bezel, wider hour and minute hands and a lower, more comfortable case. It became a collection in its own right and now covers mechanical, Spring Drive and chronograph models.
The catalog includes references with the 9SA4 and 9SA5 mechanical calibers, the 9RA2 and 9RA5 Spring Drive calibers and the 9RB family, in steel, Ever-Brilliant Steel, high-intensity titanium and platinum. Nature-themed dials such as the white birch texture are a large part of their appeal.
Quick answers
- What size is the Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021?
- The Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021 has a 40 mm case, 11.7 mm thick.
- What movement does the Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021 use?
- It uses the caliber 9SA5.
- When did the Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021 come out?
- It was introduced in 2024.
- What is the Grand Seiko Evolution 9 Hi-Beat 36000 green river texture SLGH021 made of?
- The case is Ever-Brilliant steel.
Catalog facts checked November 2026.