CASIO · JAPANESE-MARKET REFERENCE

GMC-B2100Y-1AJF

Name: GMC-B2100Y-1AJF
Brand: CASIO
SKU: GMC-B2100Y-1AJF
Price: 103460.0 JPY
Availability: OutOfStock

¥103,460 JPY

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Taxes included. Shipping calculated at checkout.

CASIO GMC-B2100Y-1AJF is a Japanese-market reference. The stainless steel case and bezel are paired with a tough silicone band (resin band). Tough Solar (solar charging system). Features include shock resistance, Bluetooth smartphone connectivity and world time. Listed water resistance: 20-bar water resistance.

Reference: GMC-B2100Y-1AJF
Case (H × W × D): 51.3 × 46.3 × 12.4 mm
Weight: 108 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: GMC-B2100Y-1AJF

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

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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: GMC-B2100Y-1AJF
JAN / EAN: 4549526407321
Intended use: Wristwatch
Band material: Tough Silicone band (resin band)
Crystal material: Mineral glass
Weight: 108 g
Case size (L × W × H): 51.3 × 46.3 × 12.4 mm
Price: ¥103,460 JPY
Country of origin: JP

Specifications

Release date	August 2025
Japan MSRP	Japan MSRP: ¥99,000 (including Japanese tax)
Case size (H × W × D)	51.3 × 46.3 × 12.4 mm
Weight	108 g
Case and bezel material	Stainless steel
Band	Tough Silicone band (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	Tough Solar (solar charging system)

Exterior details

Glass	Mineral glass
Crown	Screw-lock crown
Compatible wrist size	145–215mm
Other features	Neobrite

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; Time & Place; phone finder
World time	Dual time with home time swapping
Stopwatch	Stopwatch: 1 second, 24-hour capacity, split time
Timer	Countdown timer: 1-minute setting increments, maximum 24 hours, 1-second measurement
Alarm	Daily alarm
Light	LED light: Super Illuminator, afterglow
Light color	LED: white
Calendar	Full auto-calendar
Power saving	Power saving: stops the hands after a period in the dark
Battery indicator and alerts	Battery level indicator
Operating time	Operating time from a full charge without further solar charging
With normal functions in use: approximately 5 months
In power-saving mode: approximately 18 months
Accuracy	Without smartphone connection, the watch operates at normal quartz accuracy (±15 seconds per month).
Other features	Date and day display