Full Details of the Leak of Casio's New G-SHOCK "Casionaut"

Information has leaked that new model numbers will join Casio’s G-SHOCK lineup. The model numbers are said to be the resin GAC-2500 and the metal GMC-2500. The exterior has been noted to resemble Patek Philippe’s Nautilus. In reporting by Jeremy White of Wired, it is positioned as a follow-up to the existing “CasiOak.” This article is based on Wired (All Rights Reserved). It relies on fair quotation under Article 32 of the Japanese Copyright Act.

The leak sources are said to be Notebookcheck and an Instagram account. The images were published by an account under the name Geesgshock. Casio is said not to have responded to Wired’s request for comment. As this is at the pre-announcement stage, specifications and prices include estimates. Nevertheless, several specific features have been reported.

Emergence as the Successor to the “CasiOak”

The luxury watch world has long had an affection for Casio. The F-91W is inexpensive yet iconic. It is also known for having been worn by successive U.S. presidents. In G-SHOCK, the GA-2100 has been called the “CasiOak.” Released in 2019, the model features an octagonal exterior. It drew attention for its resemblance to Audemars Piguet’s Royal Oak. It was praised as a symbol of accessible luxury. Swatch has also released the Royal Oak-style Royal Pop. The new model is seen as continuing that lineage. On Instagram, provisional names such as “CasioNaut” and “CasioTilus” are circulating. The protrusions on both shoulders of the case evoke the Nautilus. It is a method of bringing luxury sports watch design down to the affordable segment.

The convergence of luxury and affordable watches is no coincidence. In 1972, watch designer Gerald Genta proposed an angular steel watch. It came to fruition as the Royal Oak from Audemars Piguet. It was the paradox of a steel watch more expensive than a solid-gold dress watch. In 1976, the Nautilus was born from Patek Philippe. Both were designed by Genta. They became the starting point for the luxury sports watch category. There is a view that Casio is referencing that design language. As PineVoice, $50 RISC-V Smart Speaker shows, hardware development in the low-price segment is attracting attention with its own innovations. G-SHOCK likewise seeks differentiation through form and structure. This leak lies on that extension.

The Technical Significance of Going Fully Analog

The new model’s biggest feature is its fully analog display. Many mainstay G-SHOCK models feature LCD displays. The “CasiOak” also combined hands with an LCD. The new model is said to show the time with hands only. Wired’s reporting describes this point as follows.

fully analog, a rarity in a G-Shock.

The dial is said to have a two-subdial layout. With a small seconds on the left and a date window on the right. The tail of the seconds hand is said to bear the “Shock Resist” marking. The aim is to balance legibility and decoration. It is close to the dial layout of luxury watches. The shaping of the hands and the treatment of the applied indices will also be points of interest. It is an unusual direction for G-SHOCK. It could update the conventional wisdom for shock-resistant watches. The impression from the product photos is more dress-oriented. Even so, it is said to retain the G-SHOCK backbone.

Going analog is not merely a design choice. Protecting the hand-drive system becomes a challenge. Hands can easily misalign due to drops or vibration. In the past, practicality was supplemented by using an LCD together with hands. This time, reliability must be ensured with hands alone. The solution is said to lie in the internal structure. The closer it approaches luxury watches, the higher the precision requirements become. The date change must also be stabilized. Just as with the development of testing infrastructure in GNOME OS Test Center, Inspired by Apple TestFlight, testing systems are also important for watches. Quality control in mass production will hold the key.

Balancing Magnetic Retention Structure and

Shock-Resistant Design

The interior is said to adopt a magnetic retention structure. It is a system that holds the hands with magnetic force rather than fixing them to the shaft. Even if the hands come off under strong impact, they can easily return to place. The aim is to balance shock resistance with analog design. It is positioned as one of G-SHOCK’s core technologies. Details on retention force and recovery procedures are unknown. Public information remains at the leak stage. Disclosure of official technical materials is awaited.

Its lineage is said to lie in the original G-SHOCK DW-5000C. It is said to inherit the design philosophy of that 1983 model. The resin version is said to be the GAC-2500, and the steel version the GMC-2500. The resin version offers advantages in weight and price. The steel version offers advantages in texture and rigidity. Both are said to share a shouldered exterior. The division of exterior parts and the cushioning structure will be points of interest. Ensuring shock resistance with a metal exterior is highly difficult. Increased drop energy due to added weight is a challenge. The magnetic retention structure is also seen as effective as a countermeasure. Waterproof and dustproof ratings are currently unknown. Battery type and operating life have also not been reported.

Price and Launch Timing Outlook

Four colors have been reported for the resin version. White, black, green, and yellow are said to be offered. There is information that the launch will be in November. There is an estimate that the price will be 20,900 yen. That corresponds to about $134 in U.S. dollars. The metal version is reported to be about $320. The expected price in Japanese yen has not been reported. Distribution channels and whether it will be limited are also unknown. There has been no official announcement from Casio. Notebookcheck published the leaked information. Images also spread on Instagram. As Google’s New Home Speaker Falls Short of 6-Year-Old Nest Audio in Sound Quality shows, exterior refreshes divide opinion. For watches as well, evaluation of the form will be the focus.

The price range is strategic. Around 20,000 yen is an accessible level. It brings luxury watch design into everyday use. The metal version would also be competitive if in the low 30,000-yen range. The impact of parallel imports and resale is hard to predict. Initial supply volumes will determine market reception. Official warranty and repair systems will also be important. Securing maintenance parts for analog-only models will be a challenge. Support for repairing hands and dials will be questioned. Attention is focused on what will be disclosed at the announcement.

The Pros and Cons of Approaching Luxury Watches

Approaching luxury design invites both praise and criticism. Some see it as a reference out of respect. Others question the boundary with imitation. The “CasiOak” was accepted by the market. Similar acceptance could occur this time. Meanwhile, trademark and design perspectives are delicate. No specific rights issues have been reported. It remains merely a pointing out of exterior similarity. Consumers will judge on price and quality. Post-release evaluations will decide the direction.

G-SHOCK has a track record in harsh use. There are many examples of use in construction and outdoor activities. Going fully analog could broaden its applications. It appeals to those seeking both dress and work use. It secondarily appeals to luxury watch owners as well. For use that preserves expensive pieces while serving daily wear. Demand as collectibles is also expected. Offering different colors encourages multiple purchases. A secondhand market could also form quickly. It is at the stage of awaiting official announcement and hands-on verification.

Editorial Opinion

In the next 3-6 months, attention to affordable luxury-design models is expected to grow. If the resin GAC-2500 leads, shortages and resale could occur. Competing affordable brands are also expected to rush counter-plans.

In 1-3 years, fully analog G-SHOCK models seem likely to become established. If applications of the magnetic retention structure expand, design freedom for shock resistance will increase. Accessible luxury design is expected to become an entry point to the watch hobby for younger generations.

The remaining question is whether the closeness in design is within acceptable bounds. Where the boundary between respect and imitation lies is being asked. Which consumers choose, functional value or design value, will be worth watching.

References

• “Casio ‘CasioNaut’ G-Shock GMC-2500 GAC-2500 Series: Price, Specs, Availability”, by Jeremy White — Wired, 2026-09-04T18:41:47.000Z (ARR)
• Source URL: https://www.wired.com/story/casio-g-shock-casionaut-looks-like-a-patek-philippe-classic/