- Collection: Astron – Seiko 145th Anniversary Limited Edition (1,450 pieces)
- Crystal: Dual-curved sapphire crystal with super-clear coating and gold-colored sapphire insert on bezel
- Dial: Gold-colored accents on dial, bracelet and case
- Movement: GPS Solar (Caliber 5X83); power reserve approx. 6 months fully charged / 2 years in power save mode; 14 jewels; accuracy ±15 sec per month without GPS signal
- Water resistance: 10 bar / 100 m
- Case material: Titanium with super-hard coating
- Case size: Diameter 44.1 mm; Thickness 14.4 mm; Lug-to-lug 50.0 mm; Lug width 14 mm
- Band material: Titanium bracelet with three-fold clasp and push-button release