General

• Brand Name - Casio G-Shock
• Model - GA-2100RRB-4ADR
• Model Name - G-Shock CasiOak Series
• Gender - Men's
• Age Group - Adult
• Country of Manufacture - Thailand
• Inclusions - Gift Box, Instruction Manual, Retail Tags

Sizing and Dimensions

• Case Measurements (L × W) 48.5 × 45.4mm
• Case Thickness 11.8 mm
  
• Band Width - 20 mm
• Wrist Measurements - 14.5 - 21.5cm
• Weight - 51g
• Sizing - Large

Features

• Analog/Digital Quartz Module 5611
• 200m Water Resistance (Suitable for swimming & snorkeling but not diving)
• Red Digital-Analog Dial
• Mineral Dial Window
• Case & Bezel - Matte Red Carbon fibre reinforced fine resin (Carbon Core Guard)
• Band - Matte Red Resin
• Fixed Bezel
• Crown - n/a
• Illumination - Double LED Light (Super Illuminator with selectable duration & afterglow), Neobrite Luminescent Hands
• World Time - 31 time zones (48 cities + UTC), daylight saving on/off
• Stopwatch - 1/100 Second
• Timer - Countdown Timer (1 sec to 24 hours)
• Alarm - 5 Daily Alarms & Hourly Time Signal
• Calendar/Date Display - Day-Month-Date Full auto-calendar (to year 2099)
• 12/24 Hour Display - Yes
• Battery Life - Approx. 3 years (2 x SR726W Batteries)
• Other Features - Shock Resistant, Carbon Core Guard Structure