Casio G-Shock GMW-B5000SB-1A2JF Rumored for November 2026 Launch With Blue Sapphire Details
Casio appears to be preparing a striking new addition to its premium full-metal G-Shock lineup. Fresh details suggest the upcoming model will be called the Casio G-Shock GMW-B5000SB-1A2JF, and it could stand out from earlier GMW-B5000 watches thanks to a rare design twist: blue sapphire elements built into the case.
According to the latest information, the GMW-B5000SB-1A2JF will feature blue sapphire accents at the four front screw positions on the watch case. This is especially interesting because current GMW-B5000 models typically use recessed areas in these spots rather than exposed functional front screws. If the details are accurate, this new release could become one of the first GMW-B5000 variants to introduce actual front screws as part of the design.
Although official images have not surfaced yet, the watch is expected to combine its blue sapphire detailing with matching blue accents on the dial. The rest of the design is said to lean heavily into a dark, premium look, with a black IP coating and a negative LCD display. This combination should give the watch a bold, modern appearance while keeping the classic square G-Shock identity intact.
Another notable change is the strap. While many GMW-B5000 models are known for their stainless-steel bracelets, the GMW-B5000SB-1A2JF is reportedly expected to pair its metal case with a urethane band. That could make the watch feel lighter and more casual on the wrist while still preserving the toughness and premium feel of the full-metal case.
The Casio G-Shock GMW-B5000SB-1A2JF is currently rumored to launch in Japan in November 2026. The reported price is ¥110,000, or around $715. That would make it significantly more expensive than the existing GMW-B5000-1JF, which sells in Japan for approximately ¥72,600, or about $472.
The higher price suggests Casio may position this model as a more exclusive release, possibly through select retail channels. The use of sapphire details, blue dial accents, black IP finishing, and a urethane strap could help separate it from the standard GMW-B5000 lineup and appeal to collectors looking for something more unusual.
If the rumors prove accurate, the GMW-B5000SB-1A2JF could become one of the most distinctive square G-Shock watches in recent years. With its mix of premium materials, dark styling, and eye-catching blue sapphire elements, it may attract both longtime G-Shock fans and buyers searching for a standout digital watch with classic Casio toughness.
