Grand Seiko
Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413
“Shunbun”
The Grand Seiko Heritage Spring Drive 40 (44GS) (reference SBGA413) is a 40 mm High-intensity titanium watch with a pink dial. It runs on the spring Drive caliber 9R65 with a 72-hour power reserve and is water resistant to 100 m. It was introduced in 2020 and is still in production.
Specifications
Case
- Reference
- SBGA413
- Nickname
- Shunbun
- Collection
- Heritage
- Case size
- 40 mm
- Thickness
- 12.8 mm
- Case material
- High-intensity titanium
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 100 m
- Bracelet / strap
- High-intensity titanium bracelet
Dial and bezel
- Dial
- Pink
- Bezel
- Fixed
Movement
- Movement
- Spring Drive
- Caliber
- 9R65
- Power reserve
- 72 hours
- Jewels
- 30
- Functions
- Date, Power reserve indicator
Production
- Production
- 2020 – today (current)
Dial versions
This reference was made with these dials and finishes.
SBGA413 Pink
Soft pink, cherry blossoms along river (Shunbun)
How it compares within the Heritage family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| SBGA413 (This watch) | 40 mm | High-intensity titanium | Pink | 9R65 | 2020– |
| SBGH351 | 40 mm | Ever-Brilliant Steel | Green | 9S85 | 2025– |
| SBGH353 | 40 mm | Ever-Brilliant Steel | Silver | 9S85 | 2025– |
| SBGH368 | 38 mm | 18k rose gold | Silver | 9S85 | 2025– |
| SBGH376 | 38 mm | Yellow gold | Light green | 9S85 | 2026– |
| SBGH378 | 38 mm | Yellow gold | Blue | 9S85 | 2026– |
| SBGX363 | 32.3 mm | Stainless steel | Pink | 9F51 | 2026– |
| SBGX365 | 32.3 mm | Stainless steel | Blue | 9F51 | 2026– |
| SLGW007 | 38.6 mm | Stainless steel | Navy | 9SA4 | 2025– |
About the Heritage family
Heritage is Grand Seiko's collection rooted in its classic 1960s designs, especially the 44GS and 62GS. It keeps the sharp facets, flat polished surfaces and clean dials of the Grand Seiko Style, in a wide range of sizes and movements.
The catalog includes mechanical models with 9S and 9SA calibers, Spring Drive with 9R and 9RA calibers, and quartz with the 9F, in steel, Ever-Brilliant Steel, high-intensity titanium and gold. With so many dial variations and limited editions, confirm the exact reference, and check the case edges for polishing.
Quick answers
- What size is the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413?
- The Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 has a 40 mm case, 12.8 mm thick.
- What movement does the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 use?
- It uses the spring drive caliber 9R65, with a 72-hour power reserve.
- How water resistant is the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413?
- It is water resistant to 100 metres.
- Is the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 still in production?
- Yes, it is a current reference.
- When did the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 come out?
- It was introduced in 2020.
- What is the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 made of?
- The case is High-intensity titanium. Bracelet or strap: High-intensity titanium bracelet.
- What is the Grand Seiko Heritage Spring Drive 40 (44GS) SBGA413 nicknamed?
- Dealers and collectors call it the “Shunbun”.
Catalog facts checked November 2026.