Casio G-Shock G-Steel analog stainless steel watch blue 44mm GMC-2500D-1A2ER

Casio G-Shock GMC-2500D-1A2ER is based on the watch that started the entire G-Shock story. More than 40 years after the launch of the original 1983 DW-5000C, Casio has translated the iconic octagonal shape and functional design philosophy into a modern, fully analog G-Steel watch in stainless steel.

The result is a G-Shock that clearly stands apart from the brand's traditional digital models. The rounded steel case, integrated steel bracelet and blue dial give the model a more refined sports-watch character, while the classic G-Shock proportions remain easily recognizable. The design has already led enthusiasts to draw parallels with the Patek Philippe Nautilus, and the 2500 series has therefore unofficially acquired the nickname «CasioNaut» in parts of the watch community. Casio's own design inspiration, however, comes directly from the original DW-5000C.

The dial follows Casio's new «two-eye» layout. At 9 o'clock there is a separate small seconds hand, while the new Multi-Mission Date system at 3 o'clock consists of three separate windows. This is the first time G-Shock has used this solution. The display shows not only the date, but can also show the stopwatch minutes, the selected function and information while setting the watch.

Once the year, month and date have been set, the calendar operates automatically all the way through 2099. Casio has thus succeeded in integrating functionality usually associated with digital G-Shock models into a purely analog design.

The GMC-2500 series also features a specially developed analog movement manufactured at Yamagata Casio—the factory Casio refers to as G-Shock's «mother factory». One of the most interesting technical solutions is Shock Release Hand. The minute hand is held in place magnetically and is designed so that the load from heavy impacts can be absorbed and distributed instead of being transferred directly to the hand mechanism.

The small seconds hand can also be put into sleep mode when it is not needed. With the seconds hand active, expected battery life is around 2 years, but by using the Second Hand Sleep function, battery life can be extended to up to 5 years. This makes the function more than just a technical detail—it also provides a significant practical benefit over time.

Despite the more elegant look, this is still a genuine G-Shock. The watch has a shock-resistant construction and 200-meter water resistance, combined with mineral glass, Neobrite on the hands and markers, and amber LED illumination for improved legibility in the dark.

Key benefits:

• Entirely new G-Shock 2500 series
• Inspired by the original 1983 G-Shock DW-5000C
• Fully analog G-Steel design
• Stainless steel case and integrated steel bracelet
• Blue dial
• New Multi-Mission Date with three display fields
• Automatic calendar all the way through 2099
• New Shock Release Hand technology
• Separate small seconds hand
• Second Hand Sleep with up to 5 years of battery life
• Approx. 2 years of battery life with the seconds hand active
• 30-minute stopwatch
• Shock-resistant G-Shock construction
• 200-meter water resistance
• Amber LED illumination
• Neobrite on hands and hour markers

Technical specifications:

• Case: 46.7 × 43.8mm
• Thickness: 12.9mm
• Weight: 138 grams
• Case/bezel: Resin, bio-based resin and stainless steel
• Bracelet: Stainless steel
• Clasp: One-touch three-fold clasp
• Glass: Mineral glass
• Movement: Analog quartz movement
• Accuracy: ±15 seconds per month
• Calendar: Fully automatic through 2099
• Date: Multi-Mission Date
• Stopwatch: 30 minutes, measurement in 1-second intervals
• Light: Amber LED with afterglow
• Lume: Neobrite
• Battery: CR1025
• Battery life: Approx. 2 years with the seconds hand active / up to 5 years with Second Hand Sleep
• Water resistance: 200m/20 bar
• Wrist circumference: Approx. 150–205mm

Casio G-Shock GMC-2500D-1A2ER represents a new direction for G-Shock. It combines the design heritage of the very first DW-5000C with a more refined analog sports-watch design, while Casio has also developed an entirely new movement and functions specifically for the series. For those who want G-Shock's robustness but in a more elegant and mature steel watch, this is one of the most interesting G-Shock novelties in a long time.