The Wristwatch Field Guide

Seiko Astron GPS Solar Dual-Time Chronograph (5X83)

SSH159

The Seiko Astron GPS Solar Dual-Time Chronograph (5X83) is a current-production chronograph watch with a titanium (super-hard coating) case, finished with super-hard coating. It is priced well under the $5,280 median for the category. It ships on a matching exotic-material bracelet rather than a strap.

Exotic-material chronograph watchesTitaniumGMTUnder $5,000
Price
$2,500
Material
Titanium
Grade / type
Titanium (super-hard coating)
Water resistance
100 m
Reference
SSH159
Type
Chronograph
Case diameter
42.0 mm
Thickness
12.4 mm
Lug-to-lug
49.5 mm
Origin
Japan
Movement
GPS solar quartz chronograph
Caliber
5X83
Power reserve
6 months (full charge)
Complications
Chronograph, GMT, Date
Colour
Grey
Surface treatment
Super-hard coating
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Titanium H-link bracelet, super-hard coating
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
White (SSH159), blue (SSH161), black (SSH163)
Dial colours
Black White Blue
Availability
Offered
Status
Current
Not published
Weight, Hardness, Construction, Caseback, Lume
Medium confidence Verified Jul 2026 Source: Seiko (Astron SSH159) Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

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Frequently asked questions

What is the case material of the Seiko Astron GPS Solar Dual-Time Chronograph (5X83)?

The Seiko Astron GPS Solar Dual-Time Chronograph (5X83) 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 Dual-Time Chronograph (5X83)?

It is 42.0 mm in diameter, 12.4 mm thick, 49.5 mm lug to lug, and water resistant to 100 m.

How much does the Seiko Astron GPS Solar Dual-Time Chronograph (5X83) cost, and is it available?

It is current-production and lists from $2,500.

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