Astron SSH177J1
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Description
The Seiko Astron SSH177J1 is a sophisticated GPS solar watch designed for precision and convenience. Housed in a lightweight titanium case with a super-hard coating, it features a 44.1mm diameter and a dual-curved sapphire crystal with a super-clear finish.
Powered by the advanced 5X83 movement, it automatically adjusts to your time zone via GPS and offers a 6-month power reserve, or up to 2 years in power save mode. It includes a 12-hour chronograph, dual-time display, perpetual calendar (valid until 2100), and world time across 38 cities.
LumiBrite ensures visibility in low light, while the allergy-safe metal and Smart Adjuster clasp add comfort. With 10-bar water resistance, magnetic protection, and a screw-down case back, the SSH177J1 is built for global adventures with a refined edge.
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: 14.4 mm
Diameter: 44.1 mm
Lug-to-lug: 50 mm
Crystal: Dual-curved sapphire crystal
Crystal Coating: Super-clear coating
Clasp: Three-fold clasp with push button release
Distance Between Lugs: 14
Other Details
Magnetic Resistance: 4,800 A/m
Weight: {"value":110.0,"unit":"g"}
Features:
- Allergy-safe metal
- Clasp with smart adjuster function
- Screw case back
- Lumibrite on hands and index(es)
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