G-SHOCK the tough watch that has continued to evolve in pursuit of ever-increasing strength since its launch in 1983 is introducing a metal-covered model with smartphone link and Tough Solar power while maintaining the slim size characteristic of the 2100 series.The GBM-2100 which retains the octagonal shape of the 2100 series but has a metal bezel smartphone link and Tough Solar is available in three colors: standard black blue with vapor deposition coating and green dial and the band is made of biomass plastic making it an environmentally friendly product.This model can be used in a wide range of situations from casual to business.The GBM-2100 is an advanced model of the metal-covered 2100 series that combines toughness with a stylish design.- Shock-resistant construction・ Tough Solar (solar charging system) - 20 ATM water resistance - Mobile Link function (function linkage with compatible mobile phones via Bluetooth communication) - Needle retraction function (When the needle overlaps with the LCD display and is difficult to see the needle can be temporarily retracted from above the LCD display) World time: 38 cities (38 time zones daylight saving time automatic setting function) + UTC (Coordinated Universal Time) home city swap function Stopwatch (1/100 seconds (less than 1 hour)/1 second (more than 1 hour) 24 hour counter with lap/split - Timer (set unit: 1 second maximum set: 60 minutes measured in 1 second units) - 5 time alarms - Hourly time signal - Battery indicator display - Power saving function (display turns off after a certain period of time in a dark place to save power) - Fully automatic calendar - 12/24 hour display switching - Operation sound ON/OFF switching function - Date display (month/day display switching) - Day of the week display (switchable between 6 languages: English Spanish French German Italian and Russian) Double LED light: LED light for dial (Super Illuminator afterglow function afterglow time switch (1.5 seconds/3 seconds)) LED backlight for LCD (Super Illuminator afterglow function afterglow time switch (1.5 seconds/3 seconds))・ Operating time from full charge without solar power generation When using functions: Approximately 7 months When in power saving mode: Approximately 18 months - When not linked to a smartphone it operates with normal quartz accuracy (average monthly difference of ±15 seconds)