CASIO G-SHOCK GBD-300-9DR G-SQUAD DIGITAL YELLOW WATCH

The GBD-300-9DR is the high-visibility option in G-Shock's next-generation G-Squad lineup — a bright yellow bio-based resin case with a gold/bronze metallic inner bezel ring, an inverted MIP display, and a black back bumper bezel visible at the sides. Where the GBD-300-1 goes stealth in all-black and the GBD-300-7 goes clean in white, this yellow variant is designed to be seen during outdoor runs, low-light sessions, and high-visibility training environments. The octagonal front bezel gives it a contemporary, almost GA-2100-like silhouette that sets it apart from the rectangular GBD-200 — this is G-Squad rebuilt from the ground up with a rounder, sportier, more casual shape that works as well with weekend streetwear as it does with running gear.

The GBD-300 is the slimmest G-Squad ever made, thanks to a dual-bezel shock-resistant structure that places a glass fibre reinforced resin case between the octagonal front bezel and a bowl-shaped back bumper bezel. The soft urethane band features a flexible fine-resin covering on the underside that slides to match wrist curvature during movement, with a dotted texture on skin-contact surfaces to prevent slipping and sweat adhesion. Band holes at 5mm intervals allow finer fit adjustment than the standard GBD-200. Module 3568 delivers the full G-Squad fitness package: Bluetooth connection to the CASIO WATCHES app, GPS-corrected distance via smartphone, built-in accelerometer with auto lap, auto pause, and customisable training displays, 100-run training memory with 140 laps per run, step counter with daily life log, and smart notifications with vibration. The MIP LCD stays readable in direct sunlight, and auto-light illuminates with a wrist tilt during running. Bio-based resin throughout. 200-metre water resistance. 2-year battery on a CR2032.

At a Glance

Why You'll Love It

• The slimmest G-Squad ever made. The dual-bezel structure (front bezel + back bumper bezel sandwiching the case) achieves shock resistance in a slimmer profile than the GBD-200, making it noticeably more comfortable for all-day wear and long training sessions.
• The soft urethane band with flexible fine-resin underside covering is a genuine comfort upgrade — the covering slides to match your wrist curvature during arm movement, and the dotted texture prevents sweat adhesion without restricting flexibility.
• The yellow colourway is the highest-visibility option in the GBD-300 range — ideal for outdoor runners, low-light sessions, and anyone who wants their G-Squad to be seen. The gold/bronze inner bezel ring adds a warm metallic accent that elevates the yellow beyond flat neon.
• The octagonal front bezel shape is a deliberate departure from the rectangular GBD-200 silhouette — it reads as more casual and streetwear-compatible, bridging the gap between fitness watch and everyday accessory.
• Same 100-run / 140-lap training memory, Bluetooth, step tracking, auto lap, auto pause, vibration, and smart notifications as the GBD-200 — but in a slimmer, more comfortable, more sustainably built package.
• Bio-based resin throughout (case, bezel, band) reduces environmental impact while maintaining identical durability and water resistance to conventional resin.

Perfect For

Key Features

• Slimmest G-Squad profile — dual-bezel shock-resistant structure — A glass fibre reinforced resin case sits between an octagonal front bezel and a bowl-shaped back bumper bezel. The back bumper wraps around the case to reduce contact with the back of the hand, keeping the watch comfortable during vigorous arm movements. This structure achieves G-Shock shock resistance in the thinnest G-Squad profile to date.
• Comfort-engineered soft urethane band — Flexible fine-resin covering on the underside slides to match wrist curvature during movement. Dotted texture on skin-contact surfaces prevents slipping and sweat adhesion. Band holes at 5mm intervals allow finer adjustment than the standard GBD-200 band.
• Bluetooth smartphone link with full smart notifications — Auto time sync, GPS distance calibration, training data review, life log management, and notifications for calls, emails, social media, and calendar — displayed on-screen with vibration option.
• Built-in accelerometer with auto lap, auto pause, and customisable displays — Tracks distance, speed, pace, and calories once GPS-calibrated. Auto pause stops the clock when you stop; auto lap marks every set distance. Training display is customisable — choose which metrics appear on-screen during runs.
• Memory-in-Pixel (MIP) LCD with auto light — High-contrast reflective display that stays readable in direct sunlight. Auto-light illuminates with a wrist tilt during running — no button press needed to check pace at night.
• Bio-based resin construction — Case, bezel, and band use bio-based resin derived from renewable organic sources. Same durability and water resistance as conventional resin, lower environmental footprint.

Technical Specifications

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