Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsSeiko’s US listings confirm the Astron GPS Solar SSJ023 and SSJ025 at $2,400 each. The two share the same published core specifications but differ in dial color and inspiration: SSJ023 is deep blue, while SSJ025 is deep grey. Seiko identifies SSJ026 as an Astron GPS Solar model, but its detailed specifications and price are not established in the available official listing information, so a complete three-way comparison would be premature.
SSJ023, SSJ025, and SSJ026 at a glance
| Reference | Confirmed design | Published specifications | US listing price |
|---|---|---|---|
| SSJ023 | Deep blue dial inspired by an Earth view from above; two-layer bezel. | GPS Solar caliber 3X62; 42.0 mm diameter, 12.0 mm thick, 47.9 mm lug-to-lug; titanium case; sapphire crystal with super-clear coating; 10-bar water resistance. | USD 2,400 on Seiko’s US product page, viewed October 4, 2026. This is a listing price, not a verified transaction price. Seiko SSJ023 |
| SSJ025 | Deep grey dial inspired by the Moon; same two-layer bezel design language. | GPS Solar caliber 3X62; 42.0 mm diameter, 12.0 mm thick; titanium case; sapphire crystal; 10-bar water resistance. Its published core specifications match SSJ023. | USD 2,400 on Seiko’s US product page, viewed October 4, 2026. This is a listing price, not a verified transaction price. Seiko SSJ025 |
| SSJ026 | Seiko identifies it as an Astron GPS Solar model; dial and design details are not established here. | Detailed variant specifications, including dimensions, are not stated in the available product-page information. | Not stated in the available product-page information. Seiko’s US lineup page retrieved October 4, 2026 lists SSJ023 and SSJ025, but not SSJ026. Seiko US Astron lineup |
How SSJ023 and SSJ025 differ
Dial and inspiration
The clearest confirmed distinction is visual. Seiko describes SSJ023’s dial as deep blue and inspired by the Earth viewed from above. SSJ025 uses a deep grey dial inspired by the Moon. Both are described with a two-layer bezel design.
Shared case and movement details
Both detailed product pages list GPS Solar caliber 3X62, a 42.0 mm case diameter, 12.0 mm thickness, titanium case, sapphire crystal, and 10-bar water resistance. SSJ023’s page also specifies a 47.9 mm lug-to-lug length and super-clear coating on the crystal. The documented specifications do not establish a material difference in the two watches’ core hardware.
Power, calendar, and accuracy
For both references, Seiko lists approximately six months of operation on a full charge and approximately two years in power-save mode. Each has a perpetual calendar through February 28, 2100, GPS time-zone and time-adjustment functions, and stated accuracy of ±15 seconds per month without GPS reception at temperatures from 5°C to 35°C. These are manufacturer specifications, not independent test results.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
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What can—and cannot—be confirmed about SSJ026
Seiko’s official US product page identifies SSJ026 as an Astron GPS Solar model, but its detailed variant information is not available in the listing material cited here. The US lineup page viewed October 4, 2026 displays SSJ023 and SSJ025 at USD 2,400 and omits SSJ026. That omission does not establish that SSJ026 is discontinued or unavailable in other markets.
Do not assume SSJ026 shares the SSJ023 and SSJ025 dial, dimensions, materials, or price simply because the references are related. Check Seiko’s relevant regional product page or ask an authorized local retailer to confirm the reference’s design, specification sheet, price, and stock before buying.
Rank #2
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How GPS Solar works in practice
Seiko says Astron GPS Solar watches use light as their energy source and connect to GPS for time-zone adjustment. Its manufacturer caveat matters when travel or local rules change: “If there are changes in the region / time zone / DST, manual selection may be required.” GPS capability therefore does not guarantee that every regional, time-zone, or daylight-saving change will be selected automatically. Seiko’s 2025 Astron GPS Solar announcement
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
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- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
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Rank #3
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- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Which reference should you consider?
- Choose between SSJ023 and SSJ025 by dial preference: their documented core specifications are closely matched, so the confirmed distinction is the blue Earth-inspired dial versus the grey Moon-inspired dial.
- Treat USD 2,400 as a US reference price: Seiko listed each at that amount on its US product page as of October 4, 2026; local pricing and actual retailer offers may differ.
- Verify SSJ026 before comparing or ordering: its detailed dial, specifications, price, and local availability are not established by the cited US lineup information.
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.
