Seiko
Seiko Astron 145th Anniversary Limited Edition HAB004
Seiko Astron 145th Anniversary Limited Edition HAB004
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145 Years of Seiko. Limited to 2,000 Pieces.
The Seiko Astron HAB004 is a landmark timepiece commemorating Seiko's 145th anniversary. Powered by the new GPS Solar Dual-Time Chronograph Caliber 5X63, this limited edition of just 2,000 pieces pairs cutting-edge technology with a design steeped in Seiko heritage.
Blue accents inspired by Seiko Blue — a signature color established in the 1960s and refined over decades — run throughout the dial. The blue seconds track and sub-dials contrast beautifully against the light silver main dial, creating a modern yet refined aesthetic. Sub-dials are arranged in a symmetrical layout made possible by the new movement architecture.
The titanium case features Seiko's quick-change system, allowing effortless swapping between the titanium bracelet and the included exclusive blue-and-white silicone strap with a single push of a button. LIMITED EDITION is engraved on the case back.
Movement
- Caliber: 5X63
- Type: GPS Solar
- Precision: ±15 seconds/month (without GPS signal, 5°C–35°C)
- Power Reserve: Approx. 6 months operating (fully charged); approx. 2 years in power save mode
- Jewels: 14
- Functions: GPS time adjustment (auto & manual), World time (38 cities), Dual-time, Chronograph (24hr, 1/20s increments), Perpetual calendar (to Feb 28, 2100), Day display, Power reserve indicator, DST, In-flight mode, Time transfer, Satellite acquisition display, Auto hand alignment, Overcharge prevention, Power save
Case & Band
- Case Material: Titanium with super-hard coating
- Diameter: 43.4mm
- Thickness: 12.4mm
- Lug-to-Lug: 50.0mm
- Lug Width: 14mm
- Crystal: Sapphire with super-clear coating
- Clasp: Easy-adjust three-fold clasp with push button release
- Case Back: Screw case back with LIMITED EDITION engraving
- Included: Titanium bracelet + exclusive blue-and-white silicone strap
Additional Specifications
- Water Resistance: 10 bar (100m)
- Magnetic Resistance: 4,800 A/m
- LumiBrite: Hands and indexes
- Quick-Change System: Tool-free strap/bracelet swap
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