CASIO G-SHOCK GMA-S2100-1AJF Black Analog-Digital Watch

Product Overview
The CASIO G-SHOCK GMA-S2100-1AJF is a downsized version of the iconic GA-2100, tailored for smaller wrists without compromising on durability or function. With a sleek black design and a hybrid analog-digital display, it delivers versatile performance in a compact and minimalist form — perfect for everyday wear.

Key Features

• Shock-Resistant Structure
  Designed to protect against impact, shock, and vibration.

• Carbon Core Guard Design
  Reinforced resin case structure for durability and reduced weight.

• Water Resistance: 200 meters (20 ATM)
  Safe for swimming and water activities.

• Analog-Digital Display
  Classic analog hands combined with multifunctional digital screens.

• World Time Function

  • 48 cities + UTC

  • Daylight saving time (DST) support

  • City swap for home/world time

• Stopwatch

  • 1/100-second for less than 1 hour

  • 1-second for more than 1 hour

  • Max 24-hour counter with split timing

• Countdown Timer

  • Max 24 hours, adjustable in 1-second units

• Alarms

  • 5 daily alarms + hourly time signal

• LED Light (Super Illuminator)

  • Double LED for analog and digital

  • Auto light feature with afterglow (1.5 / 3 seconds)

• Hand Shift Function

  • Temporarily moves hands to reveal digital screens

• Auto Calendar

  • Fully pre-programmed until 2099, including leap years

• Time Display Formats

  • 12-hour or 24-hour switching

• Quartz Movement

  • Accuracy: ±15 seconds per month

Specifications

• Model: GMA-S2100-1AJF

• Color: Black

• Display: Analog-Digital

• Case Size: 46.2 × 42.9 × 11.2 mm

• Weight: 41.0 g

• Case / Bezel / Band: Resin

• Glass: Inorganic (scratch-resistant)

• LED Color: White

What’s Included

• Official Casio box

• Instruction manual