The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →The Seiko Astron SSH093J1 is the 140th Anniversary Limited Edition, issued in a run of 1,400 pieces. It uses Seiko’s GPS Solar Caliber 5X53 for GPS time and time-zone adjustment, with dual-time and world-time functions. Although it is associated with 2021 coverage, it is not one of the separate SSH101 and SSH105 models Seiko calls its “2021 Limited Edition.”
What is the SSH093J1 limited edition?
Seiko identifies SSH093 as an Astron “140th Anniversary Limited Edition,” limited to 1,400 pieces; Seiko Boutique uses the full reference SSH093J1 and the same anniversary name. The 2021 framing comes from historical coverage, not from Seiko’s separate collection page titled “The Astron GPS Solar 2021 Limited Edition.” That page names SSH101 and SSH105, each limited to 800 pieces, and does not list SSH093. See Seiko’s SSH093 specifications, Seiko Boutique’s SSH093J1 listing, Seiko’s 2021 limited-edition collection, and Fratello’s 2021 article.
Seiko Astron SSH093J1 specifications
| Specification | Published detail |
|---|---|
| Movement | Solar GPS Caliber 5X53 |
| Accuracy | Seiko specifies ±15 seconds per month without GPS signal reception and at temperatures between 5°C and 35°C. |
| Operating duration | Approximately six months when fully charged; approximately two years in power-save mode, according to Seiko. |
| Case material | Stainless steel with super-hard coating |
| Bezel | Ceramic |
| Case dimensions | 42.7 mm diameter, 13.3 mm thick, 49.9 mm lug-to-lug |
| Crystal | Dual-curved sapphire with super-clear coating |
| Water resistance | 10 bar |
| Lug width | 21 mm |
| Functions | World time across 39 time zones, dual time, day display, power-reserve indication, time transfer between main and sub-dials, GPS time-zone and time adjustment, daylight-saving-time handling, in-flight mode to prevent GPS reception, and automatic hand-position alignment |
These are manufacturer-published specifications from Seiko’s Singapore product page; the page does not state a publication year. The 21 mm lug width is a measurement, not proof that a particular third-party strap will fit securely or suit the watch.
How the GPS Solar and dual-time functions work
Seiko describes the 5X53 system as connecting to the GPS network up to twice daily to maintain precision. Its collection description says the watch can adjust for daylight saving time, change time zones quickly by button, and switch the main time display between home and local time. These are manufacturer-described functions, not independently tested performance claims. Satellite acquisition, actual accuracy in use, charging behavior, and travel performance have not been established by the published specifications cited here. More on the collection’s described operation is available from Seiko’s Astron GPS Solar collection page.
#1 Best Overall
- BLUE DIAL: this handsome men’s watch features a striking deep blue dial with luminous dial indicator hands and markers and date calendar to keep you organized
- BLUE & BLACK BEZEL: with a 24-hour bezel and easy-to-read fourth hand, this GMT watch helps you keep time as you travel
- DURABLE UTILITY: these versatile men’s wrist watches feature a 42.5mm stainless steel watch case and bracelet, for a classic, timeless look.
- WATER-RESISTANT: this rugged sports watch is water-resistant up to 100 meters
- 4R34 CALIBER: equipped with the reliable 4R34 caliber, these automatic watches for men ensure the most accurate in self winding timekeeping, with 41 hours of reserve power and manual winding option
How it differs from SSH101 and SSH105
SSH093J1 should not be confused with SSH101 or SSH105. Seiko’s separate 2021 limited-edition collection describes SSH101 and SSH105 as titanium models, each limited to 800 pieces, with 20 bar water resistance and an additional silicone strap. SSH093 is the 1,400-piece anniversary edition with a stainless-steel case and 10 bar water resistance.
| Model group | Edition identification and quantity | Case material | Water resistance |
|---|---|---|---|
| SSH093 / SSH093J1 | 140th Anniversary Limited Edition; 1,400 pieces, per Seiko’s SSH093 product page | Stainless steel with super-hard coating | 10 bar |
| SSH101 and SSH105 | 2021 Limited Edition; 800 pieces each, per Seiko’s collection page | Titanium | 20 bar |
The figures and descriptions in the table are from Seiko’s SSH093 page and its SSH101/SSH105 collection page; keep each specification attached to its model.
Rank #2
- STUNNING BLUE DIAL: this automatic men's watch features a deep blue, pressed pattern and gloss finish surrounded by a stainless steel watch case
- AUTOMATIC: these self-winding, automatic men's watches are powered by your movement, with a power reserve of 41 hours
- STAINLESS STEEL: features a durable stainless steel watch case and bracelet with see through caseback
- WATER-RESISTANT: these men's wrist watches are water-resistant down to 50 meters
- 4R35 CALIBER: equipped with the reliable caliber 4R35 automatic movement, this accurate men's watch keeps precise time
Buying the SSH093J1 today
Seiko’s Singapore product page and Seiko Boutique Germany listing show market-specific prices, not a universal or necessarily current price. Check local pricing, seller status, warranty terms, and stock in your market before buying. The cited sources do not establish current inventory, an Amazon listing, or compatibility with any named replacement strap.
Quick Recap
Rank #3
- CLASSIC FIELD WATCH DESIGN: Clean white dial with bold Arabic numerals and a compass bezel for excellent readability and everyday outdoor style.
- AUTOMATIC MECHANICAL MOVEMENT: Reliable Seiko automatic movement with a 41-hour power reserve delivers smooth, battery-free performance.
- DURABLE STAINLESS STEEL BUILD: Constructed with a stainless steel case and solid link bracelet, featuring a Hardlex crystal and see-through case back.
- DAY-DATE DISPLAY: Easy-to-read day and date window with luminous hands and markers for quick timekeeping in various lighting conditions.
- EVERYDAY COMFORT: Designed for work, travel, hiking, and casual wear with 100M water resistance and a secure deployment clasp.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
