Astron SSH109J1
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Description
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The Seiko Astron SSH109J1 is a lightweight titanium GPS solar watch designed for travelers who need precision and convenience.
Powered by the Caliber 5X53, it stays accurate within ±15 seconds per month and runs for about six months on a full charge, with up to two years in power-save mode. It offers world time in 39 zones, dual-time display, a perpetual calendar to 2100, and automatic GPS signal reception for seamless time zone adjustment.
The 42.7 mm titanium case with super-hard coating is paired with a sapphire crystal and super-clear coating for excellent legibility, while Lumibrite hands and indexes ensure visibility in low light.
Explore more of the Seiko Astron collection or view more timepieces here.
Movement
Caliber Number: 5X53
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: 12
Functions:
- Overcharge prevention function
- Power save function
- Perpetual calendar to the February 28, 2100
- World time function (39 time zones)
- 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)
- 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: 12.2 mm
Diameter: 42.7 mm
Lug-to-lug: 48 mm
Crystal: Sapphire crystal
Crystal Coating: Super-clear coating
Clasp: Three-fold clasp with push button release
Distance Between Lugs: 14
Other Details
Weight: 105 g
Features:
- LumiBrite on hands and index(es)
- Allergy-safe metal
- Screw case back
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