CASIO · JAPANESE-MARKET REFERENCE

GMD-B300SC-2JF

Name: GMD-B300SC-2JF
Brand: CASIO
SKU: GMD-B300SC-2JF
Price: 18804.0 JPY
Availability: OutOfStock

¥18,804 JPY

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CASIO GMD-B300SC-2JF is a Japanese-market reference. The resin / bio-based resin case and bezel are paired with a bio-based resin band. Approx. battery life: 2 years. Features include shock resistance, Bluetooth smartphone connectivity and world time. Listed water resistance: 20-bar water resistance.

Reference: GMD-B300SC-2JF
Case (H × W × D): 46.4 × 43.8 × 12 mm
Weight: 41 g
Listed water resistance: 20-bar water resistance

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Before & after your purchase

Read our shipping and return information before ordering. Model-specific warranty and repair guidance is available below.

Buying from Japan Size & function guide

Setup & support

Model reference: GMD-B300SC-2JF

Search the official manual using this model or the module number on your watch.

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Before you choose

Warranty & service

Local warranty service outside Japan is not guaranteed. Read our return and repair policy and ask about your exact reference before ordering.

Bracelet fit & adjustments

Check the case dimensions and band details in the specifications. Ask us about fit, included links and adjustment options before placing an order.

Packaging & included items

Included items can vary by reference. Contact us with the model number to confirm the box, documents and accessories.

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Product details

Model: GMD-B300SC-2JF
JAN / EAN: 4549526396984
Intended use: Unisex wristwatch
Band material: Bio-based resin band
Crystal material: Mineral glass
Weight: 41 g
Case size (L × W × H): 46.4 × 43.8 × 12 mm
Price: ¥18,804 JPY
Country of origin: JP

Specifications

Release date	February 2025
Japan MSRP	Japan MSRP: ¥17,600 (including Japanese tax)
Case size (H × W × D)	46.4 × 43.8 × 12 mm
Weight	41 g
Case and bezel material	Resin / bio-based resin
Band	Bio-based resin band
Construction	Shock resistant
Water resistance	20-bar water resistance
Time adjustment	Bluetooth: connects to a smartphone for automatic time adjustment
Power supply and battery life	Approx. battery life: 2 years
Sensors	Step counting
Step count display: 0–999,999 steps
Goal progress display (step goal: 1,000–50,000, in increments of 1,000)
Step graph: hourly steps for the past 7 hours, shown in 6 levels
Step indicator

Exterior details

Glass	Mineral glass
Compatible wrist size	145–190mm

Watch functions

Mobile Link	Mobile Link: linked functions via Bluetooth communication with a compatible phone
App	Compatible with CASIO WATCHES
App features	Automatic time adjustment; easy watch settings; world time for approximately 300 cities; life log; stopwatch data transfer; app information; Time & Place; phone finder
World time	Dual time with home time swapping
Stopwatch	Stopwatch: 1/100 second for the first hour, 1 second thereafter; 24-hour capacity; lap / split time; up to 200 records (year, month, day, hour, minute, lap / split time); target time alerts with up to 10 targets (1-second setting increments, maximum 23 hours 59 minutes 59 seconds)
Timer	Interval timer with up to 5 time settings: 1-second setting increments, maximum 60 minutes, 1-second measurement, auto-repeat, auto-start
Alarm	5 daily alarms and hourly time signal
Light	LED backlight: auto light, Super Illuminator, afterglow, selectable illumination duration (1.5 seconds / 3 seconds)
Light color	LED: white
Calendar	Full auto-calendar
Power saving	Power saving on/off
Battery indicator and alerts	Low battery alert
Accuracy	Without smartphone connection, the watch operates at normal quartz accuracy (±15 seconds per month).
Other features	12/24-hour format
Button operation tone	Button operation tone on/off