Astron SSH186J1 Seiko 145th Anniversary Limited Edition
In celebration of Seiko’s 145th anniversary, a special limited-edition model tracing Seiko’s legacy is now available.
In 2026, Seiko will celebrate its 145th anniversary. Since its founding in 1881, the company has viewed watches as a potential solution to social challenges, consistently pursuing innovation while upholding founder Kintaro Hattori's philosophy to be “always one step ahead of the rest."
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This new GPS Solar Dual-Time Chronograph celebrates Astron's spirit of innovation. Symbolizing success and prosperity, gold-colored accents grace every part of the watch, from the dial and bracelet to the case. |
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The bezel features a gold-colored sapphire crystal insert that adds depth and dimension. Even the gold-colored markings at 1, 4, and 5 on the UTC scale offer a subtle tribute to the 145th anniversary. |
Specifications
Caliber Number: 5X83
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 12 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: 14.4mm
- Diameter: 44.1mm
- Lug-to-lug: 50.4mm
Crystal: Dual-curved sapphire crystal
Crystal Coating: Super-clear coating
Clasp: Three-fold clasp with push button release
Bracelet Length: 190.0mm
Distance between lugs: 14mm
* In an actual product, the case back direction might be different from the photograph.
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Features:
- LIMITED EDITION on the case back
- Serial number engraved on the case back
- Against an allergic reaction to nickel
- Clasp with Smart Adjuster function
- Screw case back