The Titanium Field Guide

Seiko Astron GPS Solar (3X62) SSJ013

The Seiko Astron GPS Solar (3X62) SSJ013 is a current-production integrated bracelet watch with a titanium (super-hard coating) case, finished with super-hard coating. At 110 g it sits among the heavier integrated bracelet watches in the guide, and is priced well under the $14,000 median for the category. It ships on a matching titanium bracelet rather than a strap.

All Seiko watchesWatch integrated bracelet watchesUnder $3,000Lightest, rankedOn a titanium braceletSolar
Price
$2,200
Material
Titanium
Grade / type
Titanium (super-hard coating)
Weight
110 g (with bracelet)
Water resistance
100 m
Type
Integrated bracelet
Case diameter
41.2 mm
Thickness
12 mm
Lug-to-lug
48.6 mm
Origin
Japan
Movement
GPS solar quartz
Caliber
3X62
Power reserve
6 months (full charge)
Complications
Date
Colour
Grey
Surface treatment
Super-hard coating
Finish technology
Surface hardening
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Integrated titanium bracelet, super-hard coating
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Blue grid
Dial colours
Blue
Availability
Offered
Status
Current
Not published
Reference, Hardness, Construction, Caseback, Lume
Medium confidence Verified Jul 2026 Source: Seiko (Astron SSJ013)
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the Seiko Astron GPS Solar (3X62) SSJ013?

The Seiko Astron GPS Solar (3X62) SSJ013 has a titanium (super-hard coating) case. It is recorded at medium confidence pending a maker-stated material.

What size is the Seiko Astron GPS Solar (3X62) SSJ013?

It is 41.2 mm in diameter, 12 mm thick, 48.6 mm lug to lug, and water resistant to 100 m.

How much does the Seiko Astron GPS Solar (3X62) SSJ013 weigh?

About 110 g (w/ bracelet).

How much does the Seiko Astron GPS Solar (3X62) SSJ013 cost, and is it available?

It is current-production and lists from $2,200.

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