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Description
GShock ANALOG-DIGITAL GAS-100 Series GAS100B-7AFrom G SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new basic color models using on big case, Tough Solar GAS 100 as the base. A large, rugged case combines with an aluminum bezel and basic coloring. The bezel of the GAS 100B 7A2DR is a popular blue hue that adds a sporty accent to the overall design. Tough Solar Hand shift feature Double LED Light (Super Illuminator with Full Auto Light) Basic
From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new basic color models using on big case, Tough Solar GAS-100 as the base. A large, rugged case combines with an aluminum bezel and basic coloring. The bezel of the GAS-100B-7A2DR is a popular blue hue that adds a sporty accent to the overall design. • Tough Solar • Hand shift feature • Double LED Light (Super Illuminator with Full Auto Light)
Basic Information
- Case size (L× W× H) 55.1 × 52.5 × 16.7 mm
- Weight 72 g
- Case and bezel material Case / bezel material: Resin / Aluminum
- Band Resin Band
- Construction Shock Resistant,
- Water resistance 200-meter water resistance
- Power supply and battery life: Tough Solar (Solar powered)
Exterior
- Glass Mineral Glass
Watch Features
- World time
- 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
Stopwatch
- 1/100-second stopwatch
- Measuring capacity:59'59.99''
- Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer
- Countdown timer
- Measuring unit: 1 second
- Countdown range: 100 minutes
- Countdown start time setting range: 1 second to 100 minutes (1-second increments, 1-minute increments)
Alarm/hourly time signal
- 5 daily alarms
- Hourly time signal
Light
- Double LED light
- LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- LED backlight for the digital display (Full auto LED light, 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:
- 8 months on rechargeable battery (operation period with normal use without exposure to light after charge) 19 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
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
- 12/24-hour format
- Regular timekeeping: Analog: 2 hands (hour, minute)
- 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:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Comfortable and easy to set up
Color: Black, Color: Black
I’m happy with this chair. It was not hard to assemble, and it feels stable after putting everything together. The mesh back is comfortable and breathable, so it doesn’t feel too hot when sitting for a while. The seat cushion is also thicker than I expected and feels soft enough for daily use. I like the adjustable headrest and the back support, especially for working at a desk. The chair looks simple and clean, and the wheels move smoothly. Good value for a home office chair.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Exactly the Desk Chair I Was Looking For
Color: Black
had been needing a new desk chair for a while, and this one has been a great addition to my workspace. I use it every day while working, and it feels very comfortable, even when sitting for long periods of time. The seat provides good support, and the backrest helps me stay comfortable throughout the day.
Assembly was straightforward, and the instructions were easy to follow. I also like how well it fits in my workspace and how nice it looks. So far, I am very happy with the comfort and overall quality. It has definitely made my workdays more enjoyable.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
very ergonomic
Color: Deep Black, Color: Deep Black
I bought this as a replacement for one of those gaming chairs that kills your back with a little lumbar pillow and this one is muuuuch better. the back support is everything you’d need and got rid of my neck pain after long periods of sitting and the seat cushion is supportive but still comfortable. It’s the kind of chair that you don’t really think about much because it’s so natural to sit in that you forget it’s there. The armrests flipping is a really nice feature too. One star off only because the head rest is so far back that i can’t really rest my head on it and every part of the chair that’s cloth is made of the same mesh texture like the armrests and seat. but i have no other complaints this is a good chair
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Comfortable Ergonomic Chair for Long Workdays
Color: Black, Color: Black
I’ve been using this chair for my home office, and it’s been a great addition to my workspace. The seat cushion is thick and comfortable, even after several hours of sitting, and the mesh back keeps good airflow throughout the day. I especially like the adjustable headrest, which provides extra neck support when leaning back during breaks. Assembly was straightforward, the chair feels sturdy, and the wheels roll smoothly on my floor. The all-black design also gives it a professional look that fits well in any office setup. Overall, it’s a comfortable and affordable ergonomic chair that offers excellent value for the price.
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Reviewed in the United States on May 28, 2026
★★★★★ 3
Sturdy but uncomfortable
Color: Black
The seat itself is sturdy and easy to put together, I’ve now had the product for 8 months and had no issues wear/tear despite nearly daily use, but… it’s not comfy, at all. The seat cushion has a texture to it that scrapes at my legs if I don’t have an extra pillow on it or am wearing shorts. Additionally, the seat pillow is just kind of hard. It doesn’t give very much at all, so if I sit on it for more than an hour or two at a time my butt starts to get really sore. It works as a budget option, but invest in a good seat pillow if you plan to sit in it for any length of time.
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Reviewed in the United States on April 29, 2026