The Titanium Field Guide

Seiko Astron GPS Solar (SSJ027)

SSJ027J1

The Seiko Astron GPS Solar (SSJ027) is a current-production other watch with a Titanium (super-hard coated) case, finished with super-hard coating. It measures 41.2 mm across, 12 mm thick, 48.6 mm lug to lug, and is water resistant to 100 m. Inside is the Seiko 3X62 gps solar movement, with 6 months (full charge) power reserve. Complications: Worldtimer, Perpetual calendar, Date. Priced from $2,200 (limited to 1,500). Brand origin: Japan.

Titanium other watchesUnder $3,000
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ReferenceSSJ027J1
TypeOther
Price$2,200 · limited to 1,500
Case diameter41.2 mm
Thickness12 mm
Lug-to-lug48.6 mm
Water resistance100 m
Weight–
OriginJapan
MovementGPS Solar
CaliberSeiko 3X62
Power reserve6 months (full charge)
ComplicationsWorldtimer, Perpetual calendar, Date
TitaniumTitanium (super-hard coated)
Surface treatmentSuper-hard coating
Nickel-freeYes
Bracelet / strapIntegrated titanium bracelet
CrystalSapphire
Display backNo
DialLight blue (Starry Sky)
LumeLumiBrite
AvailabilityOffered
StatusLimited edition of 1,500 (2024)
High confidence Verified 2026-06-21 Source: Seiko (maker) / aBlogtoWatch Maker / listing ↗
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