Grand Seiko SLGC009
Ref. SLGC009 · In production
- Case43 mm
- Thick15.6 mm
- Lug-to-lug50 mm
- Water res.200 m
- MovementAutomatic
- CrystalSapphire
Overview
The Grand Seiko SLGC009 is a chronograph watch from the Sport collection, part of the The Tentagraph family. It has a 43 mm brilliant hard titanium case, 15.6 mm thick, 50 mm from lug to lug. Inside is a automatic movement (calibre 9SC5) with 72 h of power reserve. You also get 200 m water resistance, a sapphire crystal and a bracelet.
Who it suits
- Wrists of roughly 17.2–19.1 cm (6.8–7.5 in), by our Watch Finder sizing guide
- Swimming, snorkelling and diving
- People who enjoy seeing a mechanical movement at work
Strengths
- Sapphire crystal resists scratches
- 200 m water resistance
- Screw-down crown helps keep water out
- 72 h power reserve survives a weekend off the wrist
- Display caseback shows the movement
Trade-offs
- Thick at 15.6 mm: harder to slide under a cuff
- Long 50 mm lug-to-lug can overhang smaller wrists
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 43 mm | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Thickness | 15.6 mm | grand-seiko.com · 23 Oct 2026 |
| Lug-to-lug | 50 mm | grand-seiko.com · 23 Oct 2026 |
| Case material | Brilliant Hard Titanium | 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 | Display (see-through) | 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 | 139 g | grand-seiko.com · 23 Oct 2026 |
Dial
| Luminous material | LumiBrite | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Chronograph | Yes | our classification |
Movement
| Movement type | Automatic | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Calibre | 9SC5 | grand-seiko.com · 23 Oct 2026 |
| Made in-house | Yes | grand-seiko.com · 23 Oct 2026 |
| Power reserve | 72 h | grand-seiko.com · 23 Oct 2026 |
| Hand-winding | Yes | grand-seiko.com · 23 Oct 2026 |
Strap / Bracelet
| Bracelet / strap | Bracelet | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Lug width | 23 mm | grand-seiko.com · 23 Oct 2026 |
Other
| US list price (MSRP) | $16,900 | grand-seiko.com · 23 Oct 2026 |
|---|---|---|
| Production status | In production | grand-seiko.com · 23 Oct 2026 |
| Style (our classification) | Chronograph | 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.
More in The Tentagraph
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Picked with Watch Finder's style tags and sizing.
Questions about the Grand Seiko SLGC009
How big is the Grand Seiko SLGC009?
The case is 43 mm wide, 15.6 mm thick and 50 mm from lug to lug.
What movement does the Grand Seiko SLGC009 use?
It uses the 9SC5 calibre, a automatic movement with 72 h of power reserve.
Can I swim with the Grand Seiko SLGC009?
Yes. It is rated to 200 m.
How much is the Grand Seiko SLGC009?
The US list price was $16,900 on grand-seiko.com when we checked on 23 Oct 2026. Prices change, so check before you buy.
Will the Grand Seiko SLGC009 fit my wrist?
By our sizing guide it sits best on wrists of about 17.2–19.1 cm (6.8–7.5 in). Use the fit checker on this page to test your own wrist.
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