GSTB400-1A G-Steel Casio G-Shock Watch

GSTB400-1A G-Steel Casio G-Shock Watch

FAn ultra-thin module encased in carbon fiber makes for a stylish G-STEEL timepiece with the slimmest profile yet.

Strong, yet lightweight, the carbon core guard structure absorbs external shocks and retains Bluetooth connectivity and solar power functionality even with smaller components and a thinner module. Measuring just 12.9mm from the back of the case to the top of the bezel, the GST-B400 is over a millimeter thinner than its predecessor.

Your choice of four distinctive styles—the simplicity of a silver metal band and silver case; light silver case set against dark resin band; dial in dramatic red vapor deposition finish paired with a black ion-plated bezel; or dial in bold blue vapor deposition finish with black ion-plated bezel and band. With top bezels treated with five different finishes and middle bezels treated with four, these G-STEEL timepieces deliver exceptional metal textures from every angle.

* Slimmest profile as of December 2020

• Shock resistant


• Stable solar power


• 20 bar water resistant


• Keeps yourself in time


• Easy to see in darkness


• Easy to operate via smartphone

G-Shock - Toughest Watches featuring Atomic Timekeeping and Tough Solar Technology

GSTB400-1A G-Steel Casio G-Shock Watch

Specifications

• Basic Information
  
  
  
  • Case size (L× W× H) 46.6 × 49.6 × 12.9 mm
  
  
  • Weight: 80 g
  
  
  • Case and bezel material: Resin / Stainless steel
  
  
  • Band: Resin Band
  
  
  • Construction: Shock Resistant, Carbon Core Guard structure
  
  
  • Water resistance: 200-meter water resistance
  
  
  • Power supply and battery life: Tough Solar (Solar powered)
  
  
  
  


• Smartphone LINK/App Connectivity Features
  
  
  
  • Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)
  
  
  • Apps: CASIO WATCHES
  
  
  
  


• Exterior
  
  
  
  • Mineral glass
  
  
  • Other: Neobrite
  
  
  
  


• Watch Features:




• World time:
  
  
  
  • 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
  
  
  
  


• Stopwatch:
  
  
  
  • 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
  
  
  
  


• Timer:
  
  
  
  • Countdown timer
  
  
  • Measuring unit: 1 second
  
  
  • Countdown range: 60 minutes
  
  
  • Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
  
  
  
  


• Alarm-hourly time signal:
  
  
  
  • 5 daily alarms
  
  
  • Hourly time signal
  
  
  
  


• Light:
  
  
  
  • Double LED light
    
    
    
    • LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    
    
    • LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
    
    
    
    
  
  
  • Light color: LED:White
  
  
  
  


• Calendar:
  
  
  
  • Full auto-calendar (to year 2099)
  
  
  
  


• Mute feature: Button operation tone on/off


• Energy saving feature: Power Saving (display goes blank to save power when the watch is left in the dark)


• Battery display/alert: Battery level indicator


• Run time:
  
  
  
  • Approx. battery operating time:
    
    
    
    • 7 months on rechargeable battery (operation period with normal use without exposure to light after charge)
    
    
    • 18 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


• Other features:
  
  
  
  • 12/24-hour format
  
  
  • Date/month display swapping
  
  
  • Day display (days of the week selectable in six languages)
  
  
  • Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  
  
  • Regular timekeeping:
    
    
    
    • Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode
    
    
    • Digital: Hour, minute, second, pm, month, date, day
    
    
    
    
  
  
  
  

GSTB400-1A G-Steel Casio G-Shock Watch

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Casio Timepiece warranty

YOUR WARRANTY CARD IS VALID ONLY FOR SERVICE IN THE COUNTRY OF PURCHASE. 

This product, except consumables or articles with limited resistance (e.g. battery, band, case), is warranted to the original purchaser to be free from defects of quality at the time of delivery for a period of one year from the date of purchase ("warranty period"). During the warranty period, and upon proof of purchase, the product will be repaired using CASIO reconditioned replacement parts or the product will be replaced with the same or a similar reconditioned replacement model within a reasonable period of time. To obtain these warranty services, please take or send the product, postage paid, with a copy of your sales receipt or other proof of purchase that shows the date of purchase, to a CASIO Service Center such as TQ Diamonds. There will be no parts or labor charge to you for valid warranty services.

This warranty is void if your watch was purchased from an online auction site or has been damaged by unauthorized service, negligence or accident, or other causes not relating to defective material or workmanship.