SKU: 57148514047

G shock Black/Silver G Steel Watch- GST-B400D-1A

Sale price$247.05 Regular price$274.50
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

G shock Black/Silver G Steel Watch- GST-B400D-1AG Shock Casio G Steel Watch Silver Black GST B400 Series An 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

G Shock | Casio

G-Steel Watch - Silver/Black 

GST-B400 Series 

An 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.

 

Basic Information

Case size (L× W× H): 46.6 × 49.6 × 12.9 mm

Weight: 160 g

Case and bezel material: Resin / Stainless steel

Band: Solid Band, Stainless Steel Band, One-touch 3-fold Clasp

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

App connectivity feature: Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Time & place, Reminder, Phone finder

 

Exterior

Glass: 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, lap/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 (with no mobile link function)

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 57148514047

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4.1 ★★★★★
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Marla Jean Mancuso
Chelsea, US
★★★★★ 4
Need some help!!
Color: GOLD METAL
Not great, and was hoping you’d give me a refund/ new bracelet. Got it for my mom a year ago for my mom and it came apart at the front. I can return if you need it but she really loved it.. Thank You Marla
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
K
Verified Purchase
Karen
Lowell, US
★★★★★ 5
Dainty and pretty
Color: GOLD METAL
It was a gift for a 15 yr. old and she loved it. It’s very pretty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
H
Verified Purchase
Holly Lenderman
Alexandria, US
★★★★★ 5
Cute and Comfortable!
Color: GOLD METAL, Color: GOLD METAL
I love this Kendra Scott stackable gold bracelet! It’s lightweight, comfortable, and looks beautiful whether I wear it alone or layered with other pieces. The gold finish has a nice shine without looking too flashy, and it feels high-quality. It’s become one of my go-to everyday accessories!
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Reviewed in the United States on August 19, 2025
J
Verified Purchase
Jean Elie Tabbal
Los Angeles, US
★★★★★ 3
Wrist band...
Color: GOLD METAL
Really beautiful wrist band but much smaller than the picture.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
C
Verified Purchase
Cozy Girl Gaming
Belleville, US
★★★★★ 5
I nice everyday bag!
I love this bag. I use it every day. I was tired of carrying around large purses. I was tired of carrying around just wallets. I needed something to be able to hold a few things that was ease of use. This bag really did that for me it has 2 pockets one side I keep my phone in among some paper documents. The other side has spots for a few cards and whatever else you would like to put inside. It’s light weight and the strap is super cute and the design as a whole is great. Definitely worth the money for this style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2025

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