Seiko Astron Limited Edition HAB011J1

A new Astron creation celebrates Seiko's 145th anniversary with Edo purple, reflecting an evolving aesthetic shaped by Tokyo's cultural heritage. In the third series of commemorative limited-edition watches celebrating Seiko's 145th anniversary, "Edo purple" serves as the central design element. This color reflects traditions handed down from ancient Edo to modern Tokyo and the spirit of creativity that has evolved Japan's largest city to the present day.

Movement
Caliber: Seiko 5X83
Type: GPS Solar
Accuracy: ±15 seconds per month (without GPS signal reception and at temperatures between 5 °C and 35 °C)
Power reserve: Approximately 6 months at full charge; up to 2 years with power save function active
Jewels: 14
Functions: Chronograph up to 12 hours in 1/20 second increments, perpetual calendar up to February 28, 2100, world time (38 cities), dual time zone, day display, power reserve indicator, time transfer between main and sub-dials, GPS signal reception (time zone adjustment, automatic and manual time adjustment), satellite acquisition status indicator, reception result indicator, daylight saving time (DST), airplane mode, automatic hand position alignment, overcharge prevention function, and power save function.

Limited edition of 2,000 pieces

Case
Material: Titanium with ceramic and titanium bezel
Diameter: 43.3 mm
Thickness: 13.4 mm
Lug to Lug: 49.5 mm
Case back: Screw case back with "Limited Edition" engraving
Water resistance: 10 bar (100 meters)
Magnetic resistance: 4,800 A/m
Features: Nickel Free, designed to reduce the risk of allergic reactions to nickel.

Glass
Material: Dual-curved sapphire
Treatment: Super Clear Coating (super transparent)

Dial and Hands
Luminous material: LumiBrite on hands and indexes, for optimal readability even in the dark.

Bracelet
Material: Titanium
Lug width: 14 mm
Clasp: Three-fold clasp with push button release and quick adjustment system.

Additional information
Edition: Limited Edition, marked on the case back.