Seiko Astron GPS Solar (SSH157)
The Seiko Astron GPS Solar (SSH157) was a 43.3 mm titanium watch with a Seiko 5X83 solar quartz movement. On the maker's specification no steel touches the skin, so the guide lists it as nickel-free. It is no longer made, so this page is a reference for buying one used.
- Reference
- SSH157J1
- Type
- Other
- Case diameter
- 43.3 mm
- Thickness
- 13.4 mm
- Lug-to-lug
- 49.5 mm
- Origin
- Japan
- Movement
- GPS Solar
- Caliber
- Seiko 5X83
- Power reserve
- 6 months (full charge)
- Complications
- Chronograph, Worldtimer, GMT, Perpetual calendar, Power reserve, Date
- Colour
- Grey
- Surface treatment
- Super-hard coating; ceramic bezel
- Finish technology
- Surface hardening
- Caseback
- Titanium
- Nickel-free
- Maker states none
- Bracelet / strap
- Titanium bracelet
- Matching bracelet
- Standard
- Crystal
- Sapphire (dual-curved, super-clear coating)
- Display back
- No
- Dial
- Blue (Infinite Starry Sky)
- Dial colours
- Blue
- Lume
- LumiBrite
- Availability
- No longer offered
- Status
- No longer offered (2024 limited edition of 1,500, sold out and removed from the Seiko lineup)
- Not published
- Hardness, Construction
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Is the Seiko Astron GPS Solar (SSH157) nickel-free?
On the maker's published specification, nothing that touches the skin is steel: the case, caseback, crown and bracelet with its clasp are all non-steel. The guide records what the maker publishes and has not tested the watch, so if you react to nickel, confirm the contact points with the maker before buying.
What grade of titanium is the Seiko Astron GPS Solar (SSH157)?
The maker confirms titanium but does not publish a grade. The caseback is titanium too.
What size is the Seiko Astron GPS Solar (SSH157)?
The case is 43.3 mm across, 13.4 mm thick and 49.5 mm from lug to lug. It is water resistant to 100 m.
How much does the Seiko Astron GPS Solar (SSH157) weigh?
About 117 g.
How much does the Seiko Astron GPS Solar (SSH157) cost, and is it available?
It is no longer made, so the only way to buy one is used. Its list price when it was in production was $2,500.
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