GBM21001AER Black G-SHOCK

Model code: GBM21001AER
Season: Spring Summer 25
Colour: Black

The Casio G-Shock GBM-2100 Silver watch combines the elegance of metals with a touch of refinement, offering Bluetooth® connectivity to your smartphone and a durable solar charging system. All of this is encapsulated in a finely crafted metallic design, enhanced by the signature octagonal case and complemented by a sustainable, bio-based resin strap. Discover a new dimension of 2100 metal functionality: a robust and stylish watch, perfect for any occasion, seamlessly transitioning from casual environments to professional settings.

The Casio G-Shock GBM-2100 Silver watch features a stainless steel bezel and a resin case reinforced with fiberglass, with an octagonal design inspired by the original G-SHOCK. The dial features a mesh pattern and circular finish, with blue and green versions offering metallic textures. Solar charging and Bluetooth® connectivity eliminate the need for battery replacements, while the bio-resin components reduce environmental impact. It is equipped with a Super Illuminator for optimal visibility in the dark.

Features:

World Time:

• 38 time zones (38 cities + Coordinated Universal Time)
• Automatic Daylight Saving Time (DST) adjustment
• City switch for local time/time zone

Chronograph:

• Centisecond chronograph
• Measurement capacity:
• 00'00''00~59'59''99 (for the first 60 minutes)
• 1:00'00~23:59'59 (after 60 minutes)
• Measurement units:
• 1 centisecond (for the first 60 minutes)
• 1 second (after 60 minutes)
• Measurement modes: elapsed time, lap/split time

Timer:

• Countdown timer
• Measurement unit: 1 second
• Countdown range: 60 minutes
• Countdown start time setting range: from 1 second to 60 minutes (1-second and 1-minute increments)

Sound Alarm / Hourly Signal:

• 5 daily alarms
• Hourly signal

Light:

• Dual LED light
• LED light for the dial (Super Illuminator, selectable light duration 1.5 or 3 seconds)
• LED backlight for the digital display (Super Illuminator, selectable light duration 1.5 or 3 seconds)
• Light color: White LED

Calendar:

• Full auto-calendar (until the year 2099)
• Volume Control:
• Button press sound on/off
• Power-saving Function:
• Display turns off to save energy when the watch is left in the dark
• Battery Status Display/Warning:
• Battery level indicator
• Run Time:
• Approximate battery life:
• 7 months with rechargeable battery (normal use without exposure to light after charging)
• 18 months with rechargeable battery (with power-saving mode activated after a full charge)

Accuracy:

• Accuracy: ±15 seconds per month (without Mobile Link function)

Additional Features:

• Hands shift function (to prevent hands from blocking the digital display)
• 12/24-hour format
• Switch between date/month display
• Day display (selectable weekdays in six languages)
• Regular time indication:
• Analog: 2 hands (hour, minute; the minute hand moves every 20 seconds), 1 dial (battery level, mode)
• Digital: hour, minute, second, PM, month, date, day of the month