The G-SHOCK world might soon welcome a brand-new flagship in the G-STEEL lineup. While Casio has not made an official announcement, leaks suggest that the upcoming GST-B1000 is in the pipeline — and it could mark a major step forward for the G-STEEL series.

With certification listings surfacing and high-resolution renders now circulating, it’s time to explore what this watch could mean for G-SHOCK fans. Here’s everything we know so far about the GST-B1000, what it could bring to the table, and why this might be one of the most exciting G-STEEL releases in years.

A New Naming Milestone: What the GST-B1000 Signals

Most current G-STEEL models, including the GST-B100 and GST-B500 series, follow a three-digit naming system. The leap to GST-B1000 is significant. In G-SHOCK terms, a four-digit model name often signals a flagship-level product — think of models like the GWG-B1000 from the Mudmaster series. These watches typically offer more advanced features, robust construction, and higher-end materials than their predecessors.

If the naming convention is any indication, the GST-B1000 is being positioned as a premium evolution of the G-STEEL family. It could sit at the top of the lineup, bridging the gap between the classic G-STEEL models and the higher-end MT-G or MR-G series.

Where the Leak Came From

So far, there has been no formal press release from Casio. However, the existence of the GST-B1000 was revealed through international certification databases, where new product filings occasionally surface before their official unveilings.

Leaked high-res renders of three debut models — the GST-B1000D-1A (black dial), GST-B1000D-2A (blue dial), and GST-B1000D-3A (green dial) — have now appeared via various industry sources. The watches have even been listed briefly on some European retail platforms, lending further credibility to their imminent release.

What Might Be New?

While official specs have not yet been published, here’s what the renders and reports suggest:

• Bluetooth Connectivity: Continuing the trend from recent models, GST-B1000 will include Bluetooth pairing with smartphones.
• Tough Solar: Solar charging is a given at this level.
• Streamlined Case Design: Compared to earlier G-STEELs, the GST-B1000 appears sleeker with minimal visible shock absorbers and a recessed bezel.
• New Dial Layout: Simplified analog display with sharper indices and a more refined visual balance.
• Premium Materials: Full stainless steel case and bracelet across all three debut models.

While some rumors speculate about more advanced tech (like sensors), there’s currently no evidence of features beyond timekeeping, solar, and Bluetooth.

Design Direction and Launch Timing

Based on early visuals, the GST-B1000 is taking a slightly more refined and modern approach than its predecessors. It retains the toughness of the G-STEEL series but shifts toward a cleaner, more streamlined look. The design language leans into smooth surfaces and sharper detailing, featuring integrated lugs with a seamless case-to-bracelet transition, no external bezel screws or shock bumpers, and a polished metallic finish that gives it a more elevated wrist presence.

According to early listings, the release is expected sometime in early fall 2025, possibly as soon as August, depending on market. Some listings in Europe suggest that retailers are already preparing inventory.

Expected Pricing

There’s no official MSRP yet, but early reports and retailer listings help narrow the expected range:

• The GST-B1000 may be priced similarly to previous full-metal G-STEEL models, which sold around $440 USD.
• Estimates suggest the new models could fall between €350 and €450 in Europe, and between ¥60,000 and ¥75,000 in Japan.
• Some sources indicate the launch price could approach $500 USD or slightly higher, depending on the market and version.

This places the GST-B1000 firmly in the upper-mid segment of the G-STEEL lineup — more premium than the GST-B500 series, but still accessible compared to MT-G or MR-G models. firmly in the upper-mid segment of the G-STEEL lineup — more premium than the GST-B500 series, but still accessible compared to MT-G or MR-G models.

Final Thoughts: A G-STEEL Gamechanger?

While the GST-B1000 is still officially under wraps, all signs point to this being a significant update for the G-STEEL collection. Whether you’re into G-SHOCK for its toughness, its tech, or its evolving aesthetics, the B1000 appears poised to deliver a strong combination of all three.

As we await the formal announcement, the GST-B1000 has already reignited excitement around the G-STEEL series. If early leaks are any indication, this release could redefine what fans expect from mid-range full-metal G-SHOCKs.

And if you haven’t seen it yet, check out our feature on one of Casio’s boldest moves in years: their first line of automatic watches — CASIO GOES MECHANICAL.