Grand Seiko SBGN029
Ref. SBGN029 · In production
- Case39 mm
- Thick12.3 mm
- Lug-to-lug45.9 mm
- Water res.200 m
- MovementQuartz
- CrystalSapphire
Overview
The Grand Seiko SBGN029 is a gmt watch from the Sport collection. It has a 39 mm stainless steel case, 12.3 mm thick, 45.9 mm from lug to lug. Inside is a quartz movement (calibre 9F86). You also get 200 m water resistance, a sapphire crystal and a bracelet.
Who it suits
- Wrists of roughly 15.5–17.4 cm (6.1–6.9 in), by our Watch Finder sizing guide
- Swimming, snorkelling and diving
- Frequent travellers who track two time zones
- Grab-and-go wear without winding or setting
Strengths
- Sapphire crystal resists scratches
- 200 m water resistance
- Screw-down crown helps keep water out
- Rated accuracy: ±10 seconds per year
- Compact 45.9 mm lug-to-lug suits smaller wrists
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 39 mm | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Thickness | 12.3 mm | grand-seiko.com · 23 Oct 2026 |
| Lug-to-lug | 45.9 mm | grand-seiko.com · 23 Oct 2026 |
| Case material | Stainless steel | grand-seiko.com · 23 Oct 2026 |
| Crystal | Sapphire | grand-seiko.com · 23 Oct 2026 |
| Anti-reflective coating | Anti-reflective coating on inner surface | grand-seiko.com · 23 Oct 2026 |
| Caseback | Screw | grand-seiko.com · 23 Oct 2026 |
| Water resistance | 200 m | grand-seiko.com · 23 Oct 2026 |
| Screw-down crown | Yes | grand-seiko.com · 23 Oct 2026 |
| Magnetic resistance | 4,800 A/m | grand-seiko.com · 23 Oct 2026 |
| Weight | 151 g | grand-seiko.com · 23 Oct 2026 |
Dial
| Luminous material | LumiBrite | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Date | Date | our classification |
| GMT / second time zone | Yes | grand-seiko.com · 23 Oct 2026 |
Movement
| Movement type | Quartz | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Calibre | 9F86 | grand-seiko.com · 23 Oct 2026 |
| Made in-house | Yes | grand-seiko.com · 23 Oct 2026 |
| Rated accuracy | ±10 seconds per year | grand-seiko.com · 23 Oct 2026 |
Strap / Bracelet
| Bracelet / strap | Bracelet | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Lug width | 19 mm | grand-seiko.com · 23 Oct 2026 |
Other
| US list price (MSRP) | $3,700 | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Production status | In production | grand-seiko.com · 23 Oct 2026 |
| Style (our classification) | GMT | our classification |
Specs are summarised in our own words from the brand's product page. Each row links its source and the date we checked it. Fields we haven't verified are left out rather than guessed.
Variants with the same specs
Same case, movement and bracelet or strap; typically a different dial or finish.
More in Sport
Similar alternatives
Picked with Watch Finder's style tags and sizing.
Questions about the Grand Seiko SBGN029
How big is the Grand Seiko SBGN029?
The case is 39 mm wide, 12.3 mm thick and 45.9 mm from lug to lug.
What movement does the Grand Seiko SBGN029 use?
It uses the 9F86 calibre, a quartz movement.
Can I swim with the Grand Seiko SBGN029?
Yes. It is rated to 200 m.
Does the Grand Seiko SBGN029 have a date?
Yes, it shows the date.
How much is the Grand Seiko SBGN029?
The US list price was $3,700 on grand-seiko.com when we checked on 23 Oct 2026. Prices change, so check before you buy.
Will the Grand Seiko SBGN029 fit my wrist?
By our sizing guide it sits best on wrists of about 15.5–17.4 cm (6.1–6.9 in). Use the fit checker on this page to test your own wrist.
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