Grand Seiko
Grand Seiko Compact 27.8 automatic STGK021
The Grand Seiko Compact 27.8 automatic (reference STGK021) is a 27.8 mm stainless steel watch with a white dial. It runs on the automatic caliber 9S27 with a 50-hour power reserve.
Specifications
Case
- Reference
- STGK021
- Case size
- 27.8 mm
- Thickness
- 11.2 mm
- Case material
- Stainless steel
Dial and bezel
- Dial
- White
Movement
- Movement
- Automatic
- Caliber
- 9S27
- Power reserve
- 50 hours
- Frequency
- 28,800 vph
- Jewels
- 35
Dial versions
This reference was made with these dials and finishes.
STGK021 White
White
Quick answers
- What size is the Grand Seiko Compact 27.8 automatic STGK021?
- The Grand Seiko Compact 27.8 automatic STGK021 has a 27.8 mm case, 11.2 mm thick.
- What movement does the Grand Seiko Compact 27.8 automatic STGK021 use?
- It uses the automatic caliber 9S27, with a 50-hour power reserve.
- What is the Grand Seiko Compact 27.8 automatic STGK021 made of?
- The case is stainless steel.
Catalog facts checked November 2026.