Casio G-Shock G-B001 Lineup Carbon Core Guard Structure Bluetooth¶ô¶÷ Retro Watch GB001RG-4D G-B001RG-4D

Mix and match to create your own look with the customizable G-B001 line of G-SHOCK — playful fun and serious practicality with colorful designs and Smartphone Link functionality.

We bring back the retro feel and gaming graphics of the 1980s with interchangeable translucent bands and bezels in two-tone molded resin for a fresh new take on models from the past.

Choose the translucent pink and blue resin bezel over white resin or opt for the translucent yellow and green resin bezel over gray resin.

Case / bezel material: Carbon / Resin　
Accompanied attached bezel
Resin Band
Shock Resistant
Carbon Core Guard structure
Mineral Glass
200-meter water resistance
LED backlight (Super Illuminator)
Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
LED:White
Mobile link (Wireless linking using Bluetooth®)
World time
38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
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
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)
5 daily alarms
Hourly time signal
Full auto-calendar (to year 2099) 
12/24-hour format 
Button operation tone on/off 
Date/month display swapping
Day display (days of the week selectable in six languages)
Regular timekeeping:
Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month (with no mobile link function) 
Approx. battery life: 3 years on CR2016
Size of case : 50.3 × 47 × 18.7 mm
Total weight : 59 g