Pinnacle of GPS Solar Innovation: Seiko Astron 145th Anniversary HAB004 Limited Edition Review
Pinnacle of GPS Solar Innovation: Seiko Astron 145th Anniversary HAB004 Limited Edition Review
In 1969, Seiko revolutionized global horology by introducing the original Quartz Astron, forever altering the landscape of precision timekeeping. Decades later, the brand pushed boundaries once more with the world's first GPS Solar watch. To celebrate Seiko's historic 145th Anniversary, the Japanese watchmaker presents the Seiko Astron GPS Solar 145th Anniversary Limited Edition (Ref. HAB004 / HAB004J1).
Strictly **limited to only 2,000 pieces worldwide**, this milestone model pairs high-grade titanium construction with Seiko's advanced Caliber 5X63 GPS Solar movement, offering atomic-clock precision anywhere on Earth at the touch of a button.
Quick Take: The HAB004J1 features a 43.4mm super-hard coated titanium case, silver pattern dial with blue accents, new Caliber 5X63 Dual-Time Chronograph movement, high-speed GPS signal reception, quick-change bracelet system, and an additional blue-and-white silicone strap.
1. Lightweight Titanium & Quick-Change System
Crafted entirely from high-grade titanium treated with Seiko's proprietary **super-hard coating**, the Seiko Astron HAB004 offers exceptional scratch resistance while weighing significantly less than traditional stainless steel timepieces.
The 43.4mm case exhibits sharp, architectural angular facets finished with Zaratsu polishing techniques. A major highlight of this 145th Anniversary limited edition is its innovative **quick-change strap system**. With a simple press, users can seamlessly transition from the integrated solid titanium bracelet to the included extra blue-and-white silicone strap without tools.
2. Advanced Caliber 5X63 GPS Solar Engine
Powering the HAB004 is the next-generation **Seiko Caliber 5X63**, a solar-powered dual-time chronograph movement that connects directly to the GPS satellite network twice daily to maintain absolute accuracy.
- Automatic Time Adjustment: Automatically syncs with atomic time standards using orbital GPS satellites.
- Dual-Time & Time Transfer: Displays main local time and sub-dial home time simultaneously, allowing users to swap dial displays instantly with a two-button push.
- Solar Autonomous Power: Operates up to 6 months on a full solar charge, extending up to approximately 2 years in power-save mode without requiring battery replacement.
- World Time (38 Time Zones): Automatic detection of 38 world time zones with daylight saving time adjustment.
3. Technical Specifications At a Glance
| Reference Number | HAB004 / HAB004J1 |
|---|---|
| Collection | Seiko 145th Anniversary Limited Edition (2,000 Pieces) |
| Case Material | Titanium with Super-Hard Coating |
| Case Diameter | 43.4 mm |
| Case Thickness | 12.4 mm |
| Dial Color | Silver with Anniversary Blue Accents & Lumibrite Hands |
| Glass Coating | Dual-curved Sapphire Crystal with Super-Clear Coating |
| Movement | Caliber 5X63 Dual-Time GPS Solar Chronograph |
| Water Resistance | 10 bar / 100 meters / 330 feet |
| Band & Clasp | Titanium Bracelet with Easy-Adjust Three-Fold Push Button Clasp |
| Included Accessories | Additional Blue-and-White Silicone Strap (Quick-Change Mechanism) |
4. Heritage & Collector Rarity
As a 145th Anniversary commemorative reference, the Seiko Astron HAB004 is engraved with its individual limited edition serial number on the titanium case back. Combining high-tech satellite connectivity with lightweight ergonomic comfort, it is the ultimate tool watch for frequent international travelers, tech enthusiasts, and serious Seiko collectors.
Get Your Seiko Astron HAB004 at Lexor Miami
Lexor Miami is an Authorized US Retailer for Seiko luxury timepieces. Enjoy 100% authentic products, official international warranty, and fast free US delivery.
Shop Seiko Astron HAB004 NowFrequently Asked Questions
How does the GPS Solar function work on the Seiko Astron HAB004?
The watch connects to orbital GPS satellites to automatically adjust to your exact time zone and local time wherever light is available. It runs entirely on solar energy and never needs a battery change.
How many pieces of the HAB004 were produced?
The Seiko Astron HAB004 is a special 145th Anniversary release limited to exactly 2,000 pieces worldwide.
Does the watch come with an extra strap?
Yes, the HAB004 features a quick-change system and comes complete with both a solid titanium bracelet and an exclusive blue-and-white silicone strap.
