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G-Shock
G-Shock Classic X-Large Matte Black Green Digital
G-Shock Classic X-Large Matte Black Green Digital

G-Shock GA-100MB Classic X-Large Digital Matte Black Green

$119.99 USD Regular price


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G-Shock is dedicated to the ongoing pursuit of further advancement of the Classic G-Shock watch, considering every possible option to improve upon the product. G-Shock Classic Watches are a reflection of this pursuit in its purest sense. Their designs reflect a deeper meaning than the usual superficial styling. These are smart designs born form the pursuit of pure functionality.

G-Shock is the ultimate tough watch. It was born from a developer's dream of "creating a watch that never breaks." Guided by a "Triple 10" development concept, the design teams sought a watch with 10-meter free-fall endurance, 10-bar water resistance and a 10-year battery life.

At a time when it was commonly believed that watches were breakable items, G-Shock's development represented a challenge to common sense. The number of experimental prototypes built for endurance testing reached over 200. And the structural development and parts improvement took approximately two years. After a long, hard process of trial and error, G-Shock was finally launched. A shock resistant structure that overturned conventional thinking about watches was realized thorough breakthrough thinking, including the ideas of a hollow- structured case, all-directional protective covering and the use of cushioning material to protect critical parts.

These were the fruits of technological development that insisted on "toughness" and a revolution in watch design. Since its launched, G-Shock has continued to evolve for 25 long years, carrying on the toughness of spirit and uncompromising passion that led its developers to persist in their unshakable belief.

G-Shock is dedicated to the ongoing pursuit of further advancement of the Classic watch, considering every possible option to improve upon the product. They are a reflection of this pursuit in its purest sense. Their designs reflect a deeper meaning than the usual superficial styling. These are smart designs born form the pursuit of pure functionality.

Button guard that protects the module from direct shocks
Our case shapes are designed in such a way to make sure that the buttons are never struck directly if the watch is dropped, no matter what the angle.

Intelligent Timing
GShock watches employ intelligent, LSI-based electronic technologies to achieve unsurpassed precision and to provide a wide range of features and functions which no conventional mechanical watch can match.

Size of case: 55 X 51.2 X 16.9 mm
Mineral Glass
Magnetic Resistant
Shock Resistant
200-meter water resistance
Case / bezel material: Resin
Resin Band
LED light
Auto light switch, selectable illumination duration, afterglow
World time
29 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping
1/1000-second stopwatch
Measuring capacity: 99:59'59.999''
Measuring modes: Elapsed time, lap time, split time
Others: Speed (0 to 1998 units / hour), Distance input (0.0 to 99.9)
Mach indicator (speed exceeding 1225 units / hour)
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)
Other: Auto-repeat
5 daily alarms (with 1 snooze alarm)
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping
Analog: 2 hands (hour, minute (hand moves every 20 seconds))
Digital: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 2 years on CR1220
Total weight: 70 g
LED:Umber

Watches.com will cover the cost for Standard International Mail* (orders over $249+) and USPS Domestic First Class (orders over $99+). Not all countries are eligible for free international shipping. Upgraded shipping options (estimated transit times and rates) will be quoted during checkout.

Watches.com has been shipping worldwide since 1999 and we ship internationally daily! All orders are processed and shipped out by 5pm (PST) Monday through Friday on regular business days. Orders placed/received after 12:00pm (PST) will be processed the next business day. 

We could all use some extra time. If your new, unworn item is not 100% to your satisfaction, you have 30 days from the original ship date to return it. To be eligible for a return, your item must be unused, unworn and in the same condition that you received it. It must also be in the original packaging. More details can be found on our Returns page.  Unfortunately SISU and Klokers watches sales are final and not eligible for return.

Warranty periods range from 12 months to lifetime, depending on the brand. All of the brands we carry come with their international manufacturer warranty.* All warranty issues are to be handled directly with the watch manufacturer, so be sure to keep your electronic invoice for proof of purchase from Watches.com as we're an authorized retailer. Contact the brand directly using the information in your warranty booklet or the manufacturer's website for complete warranty terms and repair instructions. Typically the manufacturer's warranty does not cover: battery, crystal, strap or bracelet; damage resulting from improper handling, lack of care, accidents or normal wear and tear; damage from contact with objects; water damage. 

*Unfortunately SISU and Klokers watches do not come with an international warranty as they are no longer in business.  All sales are final on SISU and Klokers with no returns accepted.
G-Shock GA-100MB Classic X-Large Digital Matte Black Green angled shot picture