Casio G-Shock [GA-2100FLS-8A4DR]

Case Size (L × W × H): 48.5 × 45.4 × 11.8 mm
Weight: 51 g
Case & Bezel Material: Carbon / Resin
Band: Resin band (compatible size: 145–215 mm)
Construction: Shock Resistant, Carbon Core Guard structure
Water Resistance: 200 meters
Power Supply & Battery Life: Approx. 3 years (SR726W × 2)

Glass: Mineral Glass
Other Exterior Features: Neobrite

Watch Features

World Time:
– 31 time zones (48 cities + UTC)
– Daylight Saving Time on/off

Stopwatch:
– 1/100-second accuracy (first 60 minutes)
– Measuring capacity:
 • 00'00''00–59'59''99 (first 60 min)
 • 1:00'00–23:59'59 (after 60 min)
– Measuring modes: Elapsed time, split time, 1st–2nd place times

Countdown Timer:
– Measuring unit: 1 second
– Range: 24 hours
– Start setting: 1 sec to 24 hrs (1-sec, 1-min, and 1-hr increments)

Alarms / Signals:
– 5 daily alarms
– Hourly time signal

Light:
– Double LED (Super Illuminator)
– LED for face + LED backlight for digital display
– Selectable illumination (1.5s / 3s), afterglow
– Light color: White

Calendar: Full auto-calendar (to year 2099)
Mute Feature: Button operation tone on/off
Accuracy: ±15 seconds per month

Other Functions:
– 12/24-hour format
– Hand shift function (hands move to avoid blocking digital display)

Regular Timekeeping:
– Analog: 2 hands (hour, minute; moves every 20 sec), 1 dial (day)
– Digital: Hour, minute, second, PM, month, date