Seiko - Astron GPS Solar 145th Anniversary Limited Edition of 2,000 pieces - HAB004

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Seiko "Astron" 145th Anniversary Limited edition of 2,000 pieces
Seiko commemorates 145 years with a limited-edition Astron model powered by the new GPS Solar Dual-Time Chronograph Calibre 5X63. In the second series of commemorative limited-edition watches celebrating Seiko’s 145th anniversary, a blue accent inspired by “Seiko Blue” is used. Established in the 1960s and refined over time, Seiko Blue continues to embody the Seiko brand identity.

Thanks to the new movement, the sub-dials are arranged across the dial in a symmetrical layout. This limited edition celebrates the anniversary with striking blue accents inspired by Seiko Blue, a signature color that reflects Seiko’s pioneering spirit. The blue seconds track and sub-dials stand out against the light silver hue of the main dial, resulting in a refreshingly modern and refined look. The limited-edition creation includes an exclusive silicone strap featuring a blue-and-white color combination.

The case features a quick-change system, which enables easy removal of straps and bracelets with the push of a button. Add a new strap simply by pressing it in place for a secure fit. This enables an instant switch between the titanium bracelet and an exclusive silicone strap for a versatile look and enhanced functionality.

MOVEMENT
Caliber Number: 5X63
Movement Type: GPS solar
Precision: ±15 seconds per month (without receiving a GPS 
signal and at temperatures between 5°C and 35°C )
Power reserve: Operating for approx. 6 months (when fully charged), 
power save: approx. 2 years
Jewels: 14
Functions:
Overcharge prevention function
Power save function
Chronograph up to 24 hours in 1/20 second increments
Perpetual calendar to the february 28, 2100
World time function (38 cities)
Dual-time function
Day display
Power reserve indicator
Time transfer function (Switching between the main-dial and sub-dial)
GPS signal reception function (Time zone adjustment, automatic time adjustment, manual time adjustment)
Satellite acquisition status display function
Reception result display function
DST (Daylight Saving Time)
Function to prevent the GPS signal reception (in-flight mode)
Automatic hand position alignment function

CASE / BRACELET
Case Material: Titanium (super-hard coating)
DIMENTIONS
Thickness: 12.4 mm
Diameter: 43.4 mm
Lug-to-lug: 50 mm
Crystal: Sapphire crystal
Crystal Coating: Super-clear coating
LumiBrite: LumiBrite on hands and index(es)
Clasp: Easy-adjust three-fold clasp with push button release
Distance between lugs: 14

Other Details
Water Resistance: 10 bar
Magnetic Resistance: 4,800 A/m
Features:
LIMITED EDITION on the case back
An additional silicone strap is included
Quick-change system
Screw case back

HAB004 Seiko Astron
Seiko Astron HAB004