The Seiko Astron HAB003J1 is a high-performance GPS solar watch designed for global travelers. Its titanium case with super-hard coating houses the advanced 5X63 calibre, offering chronograph, perpetual calendar, and world time functions across 38 cities. A sapphire crystal with super-clear coating protects the dial, while LumiBrite hands and indices ensure readability in low light.

This model combines precision and durability with a comfortable silicone strap and an easy-adjust three-fold clasp. The quick-change system allows for effortless strap customization, and the screw case back provides 10 bar water resistance. With a power reserve of approximately six months, this watch is engineered for reliability and everyday convenience.

Calibre 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 Material	Titanium (super-hard coating)
Case Size	Thickness: 12.4 mm, Diameter: 43.4 mm, Lug-to-lug: 50.0 mm
Crystal	Sapphire crystal
Crystal Coating	Super-clear coating
LumiBrite	LumiBrite on hands and index(es)
Band Material	Silicone
Clasp	Easy-adjust three-fold clasp with push button release
Distance Between Lugs	14 mm
Water Resistance	10 bar
Magnetic Resistance	4,800 A/m
Features	Quick-change system, Screw case back
Brand	Seiko
Product Type	Watch
Gender	Men's
Display Type	Analog

Seiko Astron GPS Solar Titanium Watch

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