




Seiko Astron HAB004J1 GPS Solar 145th Anniversary Limited Edition

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Experience cutting-edge horological innovation with the Seiko Astron series—a premium collection of GPS solar timepieces engineered for flawless global precision. Celebrating a historic milestone, the HAB004J1 combines an architectural, sharp-angled hexagon aesthetic with Seiko's revolutionary GPS technology that automatically syncs to satellites anywhere on Earth. Powered entirely by light, this timepiece delivers perpetual accuracy without ever needing a battery change.
Experience cutting-edge horological innovation with the Seiko Astron series—a premium collection of GPS solar timepieces engineered for flawless global precision. Celebrating a historic milestone, the HAB004J1 combines an architectural, sharp-angled hexagon aesthetic with Seiko's revolutionary GPS technology that automatically syncs to satellites anywhere on Earth. Powered entirely by light, this timepiece delivers perpetual accuracy without ever needing a battery change.
CASE
Case Diameter: 43.4 mm
Case Thickness: 12.4 mm
Case Length (Lug-to-Lug): 50.0 mm
Material: Titanium with Super-Hard Coating (Hexagonal Geometry)
Crystal: Sapphire Crystal (Super-Clear Coating)
Case Back: Threaded Case Back with "Limited Edition" and Serial Number Engravings
BAND
Bracelet: Titanium with Super-Hard Coating (Three-fold clasp with push-button release and smart adjuster function)
Included Extra Strap: Exclusive Blue-and-White Sport Silicone Strap
Interchangeability: Integrated Quick-Change Push-Button System
MOVEMENT
Movement: Caliber 5X63 GPS Solar Powered
Power Reserve: Approximately 6 months when fully charged (Perpetual operation through ambient light)
Water Resistance: 100 Meters / 10 Bar (Suitable for swimming and snorkeling)
Luminous: High-grade LumiBrite on hands and index plots
Functions: Symmetrical dual-time display, 1/20th second chronograph tracking, day/date calendar display, automatic satellite time alignment
CASE
Case Diameter: 43.4 mm
Case Thickness: 12.4 mm
Case Length (Lug-to-Lug): 50.0 mm
Material: Titanium with Super-Hard Coating (Hexagonal Geometry)
Crystal: Sapphire Crystal (Super-Clear Coating)
Case Back: Threaded Case Back with "Limited Edition" and Serial Number Engravings
BAND
Bracelet: Titanium with Super-Hard Coating (Three-fold clasp with push-button release and smart adjuster function)
Included Extra Strap: Exclusive Blue-and-White Sport Silicone Strap
Interchangeability: Integrated Quick-Change Push-Button System
MOVEMENT
Movement: Caliber 5X63 GPS Solar Powered
Power Reserve: Approximately 6 months when fully charged (Perpetual operation through ambient light)
Water Resistance: 100 Meters / 10 Bar (Suitable for swimming and snorkeling)
Luminous: High-grade LumiBrite on hands and index plots
Functions: Symmetrical dual-time display, 1/20th second chronograph tracking, day/date calendar display, automatic satellite time alignment
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.
Notice to Customers:
Orders are dispatched from Singapore.
For customers in the United States:
As of August 29, 2025, all goods imported into the U.S.—regardless of their value—may incur a 10% import duty. This change follows the removal of the de minimis threshold under updated U.S. customs policies.
Please note that customers are responsible for all import duties, taxes, customs charges, and any applicable handling fees.
For information specific to your country’s customs process, including courier fees or tax-free limits, please reach out to our support team.
