Seiko Astron GPS Solar (SSJ027)

The Seiko Astron GPS Solar (SSJ027) is a discontinued watch with a titanium (super-hard coated) case, finished with super-hard coating. At 110 g it sits around the middle for watches in the guide, and is priced above the $1,425 median across the guide. It ships on a matching titanium bracelet rather than a strap. No longer offered new; listed here as an archive reference for the used market.

4 official photos · reader photos welcome

Price

$2,200

Material

Titanium

Grade / type

Titanium (super-hard coated)

Weight

110 g (with bracelet)

Water resistance

100 m

Reference

SSJ027J1

Type

Other

Case diameter

41.2 mm

Thickness

12 mm

Lug-to-lug

48.6 mm

Origin

Japan

Movement

GPS Solar

Caliber

Seiko 3X62

Power reserve

6 months (full charge)

Complications

Worldtimer, Perpetual calendar, Date

Colour

Grey

Surface treatment

Super-hard coating

Finish technology

Surface hardening

Caseback

Titanium

Nickel-free

Unconfirmed (clasp or buckle material not confirmed)

Bracelet / strap

Integrated titanium bracelet

Matching bracelet

Standard

Crystal

Sapphire

Display back

No

Dial

Light blue (Starry Sky)

Dial colours

Blue

Lume

LumiBrite

Availability

No longer offered

Status

No longer offered (2024 limited edition of 1,500, sold out and removed from the Seiko lineup)

Not published

Hardness, Construction

High confidence Verified Jul 2026 Source: Seiko (maker) / aBlogtoWatch

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