The Titanium Field Guide

Grand Seiko Heritage Spring Drive SBGA259

The Grand Seiko Heritage Spring Drive SBGA259 is a current-production dress watch with a high-intensity titanium case, finished with zaratsu polished. At 100 g it sits among the heavier dress watches in the guide. It ships on a matching titanium bracelet rather than a strap.

All Grand Seiko watchesWatch dress watchesLightest, rankedOn a titanium braceletPower reserveDisplay back
Material
Titanium
Grade / type
High-Intensity Titanium
Weight
100 g (with bracelet)
Water resistance
100 m
Type
Dress
Case diameter
41.0 mm
Thickness
12.5 mm
Origin
Japan
Movement
Spring Drive, self-winding with manual wind
Caliber
9R65
Power reserve
72h
Complications
Date, Power reserve
Colour
Grey
Surface treatment
Zaratsu polished
Finish technology
Natural finish
Caseback
Titanium (display)
Nickel-free
Unconfirmed (clasp or buckle material not confirmed)
Bracelet / strap
High-Intensity Titanium bracelet
Matching bracelet
Standard
Crystal
Dual-curved sapphire, inner AR
Display back
Yes
Dial
White
Dial colours
White
Lume
LumiBrite (seconds hand)
Availability
Offered
Status
Current (region-limited; live on the SG site, US page not published)
Not published
Reference, Price, Lug-to-lug, Hardness, Construction
Medium confidence Verified Jul 2026 Source: Grand Seiko (SBGA259)
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Frequently asked questions

What is the case material of the Grand Seiko Heritage Spring Drive SBGA259?

The Grand Seiko Heritage Spring Drive SBGA259 has a high-intensity titanium case with a titanium (display) caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Grand Seiko Heritage Spring Drive SBGA259?

It is 41.0 mm in diameter, 12.5 mm thick, and water resistant to 100 m.

How much does the Grand Seiko Heritage Spring Drive SBGA259 weigh?

About 100 g (w/ bracelet).

How much does the Grand Seiko Heritage Spring Drive SBGA259 cost, and is it available?

It is current-production; the guide does not list a price for it.

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