Seiko Astron GPS Solar Chronograph HAB001J1

The Seiko Astron combines innovation and contemporary design. Its distinctive octagonal titanium case, featuring a scratch-resistant coating and brushed finishes, offers a modern and refined look. It has a diameter of 43.41 mm and a thickness of 12.37 mm.

The high-scratch-resistance sapphire crystal, complete with Super Clear coating, ensures excellent dial legibility.

Technical Specifications

Movement

Caliber: 5X63
Movement type: GPS Solar
Accuracy: ±15 seconds per month (without receiving a GPS signal and at temperatures between 5°C and 35°C)
Power reserve: Operates for approx. 6 months (when fully charged), power save: approx. 2 years
Number of jewels: 14
Functions: Overcharge prevention function; power save function; chronograph up to 24 hours in 1/20 second increments; perpetual calendar to February 28, 2100; world time function (38 cities); dual time function; day display; power reserve display; 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)
Thickness: 12.4 mm
Diameter: 43.4 mm
Lug-to-lug: 50.0 mm
Case back: Screw case back

Crystal

Material: Sapphire crystal
Coating: Super-clear coating

Dial and Hands

LumiBrite: LumiBrite on hands and indices

Bracelet

Material: Titanium
Clasp: Three-fold clasp with push button release with quick adjust
Lug width: 14 mm
Quick-change system: Available

Other details

Water resistance: 10 bar
Magnetic reluctance: 4,800 A/m
Hypoallergenic: Yes