CASIO G‑SHOCK GM‑2100B‑4ADR Men’s Metal‑Clad Analog‑Digital Watch – Dark Steel Bezel, Red Dial, 200 m Water‑Resistant, Shock‑Resistant Octagonal Case

The CASIO G‑SHOCK GM‑2100B‑4ADR is a refined evolution of the 2100 series, fusing premium metal styling with G‑SHOCK’s legendary durability. Featuring an octagonal stainless‑steel bezel finished in dark steel, a bold red dial, and a durable resin case and strap, this analog‑digital hybrid timepiece is built for both style and performance. With 200‑metre water‑resistance, shock‑proof construction, world‑time functionality and a sleek profile, the GM‑2100B‑4ADR is the perfect companion for everyday wear, active lifestyles and modern fashion.

Key Features:

• Model: GM‑2100B‑4ADR from the G‑SHOCK GM‑2100 metal‑clad collection

• Build & Materials: Resin case and strap paired with a stainless‑steel octagonal bezel in dark steel for premium look and strength.

• Dial & Style: Striking red dial provides high visibility and bold contrast against the dark steel bezel and black/resin band.

• Size & Weight: Approx. 49.3 × 44.4 × 11.8 mm; Weight approx. 72 g.

• Water Resistance: 200 metres / 20 bar — suitable for swimming and daily rugged use.

• Construction: Shock‑resistant structure engineered with metal‑covered bezel and resilient resin inner case for enhanced durability.

• Display & Functions:

• Hybrid analog (hour & minute hands) + digital display

• World Time covering multiple time zones

• 1/100‑second stopwatch, countdown timer (up to 24 hrs)

• 5 daily alarms + hourly time signal; full auto‑calendar to year 2099 

• Hand‑shift feature: Hands move aside to reveal digital display clearly

• Double LED light (Super Illuminator) for both dial and digital display visibility

Why Choose the GM‑2100B‑4ADR:

• Premium metal‑clad aesthetics combined with core G‑SHOCK durability make this model ideal for users who want style without sacrificing toughness.

• Compact yet strong: The octagonal metal bezel gives a robust look while the case remains reasonably sized for everyday comfort.

• Versatile: Whether in the city, at the gym, outdoors or at an evening event, this watch adapts while making a statement.

• Bold combination: The red dial and dark steel bezel create high contrast and visual impact — great for those who appreciate standout design.

What’s Included:

• Authentic CASIO G‑SHOCK GM‑2100B‑4ADR watch

• Official G‑SHOCK presentation box

• Instruction manual

• CASIO international warranty card

Keywords:

CASIO G‑SHOCK GM‑2100B‑4ADR, G‑SHOCK GM‑2100 series, metal‑clad G‑SHOCK watch, red dial G‑SHOCK men’s watch, 200 m water‑resistant G‑SHOCK, shock‑resistant analog‑digital G‑SHOCK, octagonal bezel G‑SHOCK men’s timepiece, premium metal G‑SHOCK men’s watch.

Specifications

Basic Information

Case size (L× W× H)

49.3 × 44.4 × 11.8 mm

Weight

72 g

Case and bezel material

Resin / Stainless steel

Band

Resin Band

Construction

Shock Resistant

Water resistance

200-meter water resistance

Power supply and battery life

Approx. battery life: 3 years on SR726W X 2

Exterior

Glass

Mineral Glass

Other

Neobrite

Watch Features

World time

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

Stopwatch

1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)

Alarm/hourly time signal

5 daily alarms

Hourly time signal

Light

Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), 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

Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)

Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date