CASIO G‑SHOCK GD‑100‑1BDR Men’s Digital Watch – Large Case, High‑Brightness LED Backlight, 200 M Water‑Resistant, Shock‑Resistant

The CASIO G‑SHOCK GD‑100‑1BDR is a bold digital timepiece built for durability, readability and serious performance. With its oversized case, high‑intensity LED backlight and full G‑SHOCK toughness (200 metre water resistance, shock‑resistant structure), this watch is ideal for active use, everyday wear and travel.

Key Features:

• Model: GD‑100‑1BDR

• Case Size & Dimensions: Approx. 55 × 51.2 × 17.4 mm — large and commanding on the wrist.

• Weight: Approx. 72 g — lightweight relative to its size.

• Build: Resin case and bezel for impact absorption; resin band for comfort and durability.

• Water Resistance: 200 metres (20 bar) — suitable for swimming, showering, active use and rugged conditions.

• Display & Illumination:

  • High‑brightness LED back‑light with light‑guide plate ensures excellent visibility even in darkness.

  • Digital display offering multiple modes and large digits for clarity.

• Functions:

  • World Time across 31 time zones / 48 cities (plus UTC)

  • Multi‑time (4 cities) — ability to set different time zones concurrently

  • 1/100‑second stopwatch with long measuring range (up to 23:59’59.99”)

  • Countdown timer (from 1 second up to 24 hours)

  • 5 daily alarms + hourly time signal

  • Flash Alert: flash‑with‑buzzer for alarms, countdown timer time‑up and hourly signal

  • Full Auto‑Calendar (pre‑programmed through year 2099)

  • 12/24‑hour format selectable

  • ±15 seconds/month accuracy

  • Approximate battery life: 7 years on a CR2025 battery.

• Style & Appeal: The oversized case and robust digital display give strong presence and utility. Sleek black styling with subtle accents makes it versatile for casual wear, sport or travel.

Why Choose the GD‑100‑1BDR:

• Oversized, powerful design that gives strong wrist presence and takes advantage of full digital functionality.

• Readability under all lighting conditions thanks to the high‑intensity LED back‑light and clear display.

• A full feature‑set for travel, training, daily timekeeping: world time, alarms, timer, stopwatch and more.

• Built tough: 200 m water resistance and shock protection mean you don’t have to treat it gently — it’s designed for action.

• Great value for users seeking a strong, feature‑rich digital G‑SHOCK with recognizable style, in a dependable everyday timepiece.

What’s Included:

• Authentic CASIO G‑SHOCK GD‑100‑1BDR watch

• Presentation box

• Instruction manual

• CASIO international warranty card

Keywords:

CASIO G‑SHOCK GD‑100‑1BDR, G‑SHOCK GD‑100 series, G‑SHOCK large case digital, high‑brightness LED backlight G‑SHOCK, 200m water resistant digital G‑SHOCK, shock‑resistant men’s G‑SHOCK watch, world‑time G‑SHOCK digital, G‑SHOCK for sport & travel.

Specifications

Basic Information

Case size (L× W× H)

55 × 51.2 × 17.4 mm

Weight

72 g

Case and bezel material

Resin

Band

Resin Band

Construction

Shock Resistant

Water resistance

200-meter water resistance

Power supply and battery life

Approx. battery life: 7 years on CR2025

Exterior

Glass

Mineral Glass

Watch Features

World time

Multi Time (4 different cities)

World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping

Stopwatch

1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer

Countdown timer Measuring unit: 1/10 second Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)

Alarm/hourly time signal

5 alarms (daily or one-time)

Hourly time signal

Flash alert feature

Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm

Light

LED backlight Auto light switch, selectable illumination duration, afterglow.

Light color

LED:White

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Accuracy

Accuracy: ±15 seconds per month

Other features

12/24-hour format

Regular timekeeping: Hour, minute, second, pm, month, date, day