Casio G-SHOCK G-STEEL Black Resin Tough Solar Analogue-Digital Men's Watch - GSTB100B-1A3

This black ion-plated model with an edge unique to the GST-B100 series and a tough, sporty finish, is based on a G-STEEL model designed with a motif of heavy jet engine blades and features a solid case equipped with an analog chronograph, as well as a urethane band.
A dual-coil motor in a rotating disc dial placed at 9 o'clock moves the dial blades and exudes a functional beauty. In addition to the alarm on/off function and using the rotation to show the stopwatch, etc., it also functions as a battery indicator, contributing to a tough chronograph.
The layer guard structure and high-density mounting technology have allowed the module to be smaller and thinner, improving wearability and overall watch quality.
It is also equipped with Bluetooth® connectivity that enables accurate time acquisition via your smartphone. Its Tough Solar feature allows it to run stably, and it is also equipped with practical functions such as high-brightness LEDs and dual-dial world time.

Basic Information
Case size (L× W× H): 58.1 × 53.8 × 14.1 mm
Weight: 101 g
Case / bezel material: Resin / Stainless steel
Band: Resin Band
Construction: Shock Resistant
Water resistance: 200-meter water resistance
Power supply and battery life
Tough Solar (Solar powered)

Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®)
Apps
G-SHOCK Connected

Watch Features
World time
Dual time (Home city time swapping)
Stopwatch
1-second stopwatch
Measuring capacity: 23:59'59
Measuring mode: split time

Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Alarm/hourly time signal
Daily alarm

Light
LED light (Super Illuminator)
Afterglow
Light color
LED: White

Calendar
Full auto-calendar (to year 2099)

Energy saving feature
Power Saving (hands stop to save power when the watch is left in the dark)
Battery display/alert
Battery level indicator

Run time
Approx. battery operating time:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy
Accuracy: ±15 seconds per month (with no mobile link function)

Other features
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
Date display
Day indicator
Operation Guide

Warranty: 2 Year International Casio Warranty