The Wristwatch Field Guide

Grand Seiko Evolution 9 Tentagraph (SLGC001)

The Grand Seiko Evolution 9 Tentagraph (SLGC001) is a current-production chronograph watch with a high-intensity titanium case, finished with zaratsu polished. At 154 g it sits among the heavier chronograph watches in the guide, and is priced well above the $4,300 median for the category. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

All Grand Seiko watchesExotic-material chronograph watchesTitaniumDisplay back
Price
$14,700
Material
Titanium
Grade / type
High-intensity titanium
Weight
154 g (with bracelet)
Water resistance
100 m
Type
Chronograph
Case diameter
43.2 mm
Thickness
15.3 mm
Origin
Japan
Movement
Automatic Hi-Beat 36000 chronograph
Caliber
Grand Seiko 9SC5
Power reserve
72 h
Complications
Chronograph, Date
Colour
Grey
Surface treatment
Zaratsu polished
Caseback
Titanium
Nickel-free
Yes
Bracelet / strap
High-intensity titanium bracelet
Matching bracelet
Standard
Crystal
Dual-curved sapphire, AR coated
Display back
Yes
Dial
Black, 3-6-9 subdials
Dial colours
Black
Lume
LumiBrite
Availability
Offered
Status
Current
Not published
Reference, Lug-to-lug, Hardness, Construction
High confidence Verified Jul 2026 Source: Monochrome / SJX Maker ↗
Facts are free to cite with a link.
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Frequently asked questions

Is the Grand Seiko Evolution 9 Tentagraph (SLGC001) nickel-free?

Yes. Nothing nickel-bearing touches the skin: a high-intensity titanium case with a titanium caseback, plus a non-steel crown and bracelet and clasp. The Wristwatch Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

What is the case material of the Grand Seiko Evolution 9 Tentagraph (SLGC001)?

The Grand Seiko Evolution 9 Tentagraph (SLGC001) has a high-intensity titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Grand Seiko Evolution 9 Tentagraph (SLGC001)?

It is 43.2 mm in diameter, 15.3 mm thick, and water resistant to 100 m.

How much does the Grand Seiko Evolution 9 Tentagraph (SLGC001) weigh?

About 154 g (w/ bracelet).

How much does the Grand Seiko Evolution 9 Tentagraph (SLGC001) cost, and is it available?

It is current-production and lists from $14,700.

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