Astron SSH171J1 GPS Solar 2025 Limited Edition
. Learn More.
Description
Limited edition of 1,500 pieces
The Seiko Astron SSH171J1 is a high-tech GPS solar watch crafted for precision and global convenience. Limited to just 1,500 pieces, it features the 5X83 movement with ±15 seconds monthly accuracy and a 6-month power reserve.
Built from super-hard coated titanium, its 42mm case houses a dual-time display, chronograph, perpetual calendar, and world time across 38 cities—all powered by GPS. With a sapphire crystal, LumiBrite accents, and a smart-adjuster clasp, it’s durable, comfortable, and ready for travel. A see-through case back engraved with its serial number adds a final touch of exclusivity.
Movement
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 / Band
Case Material: Titanium (super-hard coating)
Thickness: 14.3 mm
Diameter: 41 mm
Lug-to-lug: 45.1 mm
Crystal: Sapphire crystal
Crystal Coating: Super-clear coating
Clasp: Three-fold clasp with push button release
Bracelet Length: 195.0
Distance Between Lugs: 14
Other Details
Magnetic Resistance: 4,800 A/m
Weight: 106 g
Features:
- LIMITED EDITION on the case back
- Serial number engraved on the case back
- Allergy-safe metal
- Clasp with Smart Adjuster function
- Screw case back
- LumiBrite on hands and index(es)
Any purchase through our SEIKO Online Store has a 3-year guarantee.
Explore Grand Seiko
Grand Seiko elevates the pure essentials of watchmaking to the level of fine art, handcrafted to perfection.
SHOP SEIKO
Seiko is one of the few fully integrated watch manufactures. We design and develop our own movements using leading-edge technology.
