The Seiko Astron HAB005J1 features a newly developed pressed-pattern dial inspired by the sparkling facets of quartz crystal, finished in a fresh Crystal Green that emits a radiant glow. Its lightweight titanium case with super-hard coating houses the advanced 5X63 GPS solar calibre, which connects to the GPS network for precision timekeeping and offers a perpetual calendar, world time function for 38 cities, and a 24-hour chronograph. A quick-change system allows effortless switching between the titanium bracelet and the included black silicone strap, secured by an easy-adjust three-fold clasp. Sapphire crystal with a super-clear coating and LumiBrite on the hands and indexes ensure exceptional legibility in any light.

Brand	Seiko
Model Number	HAB005J1
Product Type	Men's Watch
Movement Type	GPS Solar
Calibre Number	5X63
Precision	±15 seconds per month
Power Reserve	Approximately 6 months (fully charged), power save: approximately 2 years
Jewels	14
Case Material	Titanium (super-hard coating)
Case Diameter	43.4 mm
Case Thickness	12.4 mm
Lug-to-Lug Distance	50.0 mm
Crystal	Sapphire crystal with super-clear coating
LumiBrite	Hands and indexes
Clasp	Easy-adjust three-fold clasp with push button release
Water Resistance	10 bar
Magnetic Resistance	4,800 A/m
Functions	Chronograph up to 24 hours in 1/20 second increments, Perpetual calendar, World time (38 cities), Dual-time, Day display, Power reserve indicator, GPS signal reception, DST, In-flight mode
Additional Features	Limited edition, Serial number engraved, Quick-change system, Additional silicone strap included, Screw case back

Seiko Astron Men's GPS 2026 Limited Edition Titanium Crystal Green Watch