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Brand: Casio G-Shock
Gender: Men's
Brand Origin: Japan
Series: 2100 Series
Additional Information: 3 Years battery life(SR726W X 2)
Model: GA-2100RRB-4ADR
Movement: Quartz
Movement Source: Japan
Power Reserve: Approx. 3 Years (SR726W × 2)
Case Size: 45.4mm
Lug-to-lug: 48.5 mm
Case Thickness: 11.8mm
Band Width: 25 mm
Band Type: Strap
Dial Color: Black
Case Color: Red
Band Color: Red
Bezel: Fixed
Bezel Color: Red
Bezel Material: Bio-Based Resin
Case Material: Bio-Based Resin
Band Material: Bio-Based Resin
Water Resistance: 200 Meters / 660 Feet Depth
Functions: Shock Resistant, Carbon Core Guard structure
Watch Style: Sports, Diver
Weight: 51 Gram
Warranty: 2 Years Official Warranty
Case Back: Solid
Case Shape: Octagonal
Clasp: Tang
Crystal: Scratch Resistant Mineral
Crown: Push Buttons
LumiBrite: Dual LED Super Illuminator (White)
Known By: GA-2100RRB-4ADR
G-SHOCK 2100 Series is inspired by the original 1983 G-SHOCK while introducing a slimmer profile and the now-iconic octagonal bezel. The RRB (Red & Black) collection celebrates G-SHOCK's heritage with an intense all-red design complemented by black accents and a metallic red dial. Constructed with bio-based resin and Carbon Core Guard technology, the GA-2100RRB-4A delivers outstanding toughness while supporting more sustainable material choices.
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GA-2100RRB-4A is powered by a Japanese Quartz Analog-Digital movement, delivering dependable accuracy of ±15 seconds per month with an approximate 3-year battery life using two SR726W batteries. The movement includes world time for 31 time zones, a 1/100-second stopwatch, countdown timer, five daily alarms, hand shift function, dual Super Illuminator LED lights, and a full auto calendar through the year 2099.
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