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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The Casio G-Shock MTG-B3000D-1A9 is a 200-meter, solar-powered MT-G analog watch with Dual Core Guard construction, radio time calibration and Bluetooth smartphone linking. It measures 51.9 × 50.9 × 12.1 mm and weighs 148 g, so its substantial case is worth considering when judging fit. Casio’s international product page labels it an “Old Model”; that listing does not establish current stock or price.
What is the G-Shock MTG-B3000D-1A9?
Casio places the MTG-B3000D-1A9 in its MT-G line and MTG-B3000 series. Its Dual Core Guard structure pairs a carbon fiber-reinforced resin case around the module with metal components on the exterior. Casio also describes an upward-shaped stainless-steel case back that serves as the lugs and guards for the crown and buttons. Casio’s international product page describes this construction as protecting the module in resin while enclosing the exterior in metal.
MTG-B3000D-1A9 specifications
| Specification | Casio-listed detail |
|---|---|
| Case size | 51.9 × 50.9 × 12.1 mm |
| Weight | 148 g |
| Case and bezel material | Resin and stainless steel |
| Crystal | Sapphire crystal with anti-reflective coating |
| Water resistance | 200 m (20 bar) |
| Power | Tough Solar |
| Time calibration | Multi Band 6 radio control |
| Accuracy without signal calibration | ±15 seconds per month |
| Battery operating time | Approximately 5 months under normal use without exposure to light after charging; approximately 18 months in total darkness with Power Save enabled after a full charge |
These are manufacturer specifications, not independent test measurements. The stated battery times depend on the conditions in the table; they are not a guarantee of runtime in every wearer’s use.
What features does it offer?
Casio lists Triple G Resist protection against shock, centrifugal force and vibration, together with 20-bar water resistance. Timekeeping and power features include Tough Solar charging, Multi Band 6 radio control, Bluetooth linking through the CASIO WATCHES app, and automatic hand home-position correction.
#1 Best Overall
- Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way
- Super LED Light
- Shock Resistant
- Mineral Glass
Other listed functions include dual time across 27 time zones, a stopwatch, countdown timer, daily alarm, LED Super Illuminator and a full auto-calendar through 2099. The international listing also specifies a screw-lock crown, one-touch three-fold clasp, and gold ion-plated bezel.
Case, bracelet and band changes
The 51.9 mm case width and 148 g weight make this a relatively substantial watch to assess on the wrist. The layered composite band uses Casio’s tool-free one-touch exchange system. Casio’s international and India listings name two replacement band options for the MTG-B3000 series: BANDGS52P-1 and BANDGS52D-1. Check the exact reference and regional compatibility with Casio or the seller before ordering; a series-level listing alone does not guarantee fit for every regional variant.
Rank #2
- Metal-clad daring meets sophisticated gleam in this Casio G-Shock that delivers Smartphone Link via Bluetooth(R) and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel
- This model features a blue metallic vapor deposition dial that is complemented by a black band made of environmentally responsible bio-based resin
Availability, price and regional model details
The international product page identifies the MTG-B3000D-1A9 as an “Old Model,” so it should not be treated as evidence of current availability or a current selling price. Stock, local pricing and warranty depend on the market and retailer.
Casio Japan lists the regional variant MTG-B3000D-1A9JF as released in July 2023 with a Japanese suggested retail price of ¥154,000 including tax. That is a dated Japanese price for the JF variant, not a current price for the international MTG-B3000D-1A9. Confirm the full model suffix and warranty terms for the market where you plan to buy.
Where to find the manual and support
Casio Singapore’s model support page provides an operation guide and links to help with band questions, smartphone linkage, care, troubleshooting and after-sales service. Casio’s India product page also lists the model and replacement band options.
Quick Recap
Best Value
- Case size (L× W× H): 49.3 × 43.6 × 13 mm
- Customizable four display modes
Rank #4
- Introducing the GM-2110D - an analog-digital combination G-STEEL based on the GA-2100, now with a stylish metal bezel and band update
- Meticulously forged and polished, the uniform octagonal stainless-steel bezel anchors a simple, no-fuss design with a sophisticated, yet tough look
- Choose from, sky blue, orange, or lime green, in addition to classic hues of navy and silver
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
