--- product_id: 729454383 title: "Watches G-SHOCK GA-100-1A2 Overseas model [Reimport]" brand: "casio" price: "฿10371" currency: THB in_stock: true reviews_count: 13 url: https://www.desertcart.co.th/products/729454383-watches-g-shock-ga-100-1a2-overseas-model-reimport store_origin: TH region: Thailand --- # 20 ATM water resistant 48 cities, 29 time zones 1/1000s stopwatch precision Watches G-SHOCK GA-100-1A2 Overseas model [Reimport] **Brand:** casio **Price:** ฿10371 **Availability:** ✅ In Stock ## Summary > 🌟 Own Time Like a Pro — The G-SHOCK GA-100-1A2 is Your Ultimate Power Move ## Quick Answers - **What is this?** Watches G-SHOCK GA-100-1A2 Overseas model [Reimport] by casio - **How much does it cost?** ฿10371 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/729454383-watches-g-shock-ga-100-1a2-overseas-model-reimport) ## Best For - casio enthusiasts ## Why This Product - Trusted casio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Visibility:** Auto LED light with customizable afterglow ensures you stay on time, day or night. - • **Global Time Mastery:** Seamlessly track 48 cities across 29 time zones with daylight saving adjustments—never miss a beat. - • **Unmatched Shock Resistance:** Engineered to withstand the toughest impacts, perfect for your active lifestyle. - • **Precision Stopwatch & Timer:** Measure down to 1/1000th of a second with a 100-hour stopwatch and versatile timer for peak performance. - • **Robust 20 ATM Water Resistance:** Dive into any adventure with confidence—waterproof up to 200 meters. ## Overview The CASIO G-SHOCK GA-100-1A2 is a rugged, quartz-driven watch designed for professionals who demand durability and precision. Featuring shock resistance, anti-magnetic protection, and 20 ATM water resistance, it supports world time across 48 cities and 29 time zones. With a 1/1000 second stopwatch, multiple alarms, and an auto LED light, this 70g powerhouse blends advanced functionality with bold style, making it a must-have for the modern global manager. ## Description Structure and performance impact structure(Shock Resistant), Anti-magnetic watches(JIS1 type), Waterproof 20 ATM water resistant, Main function 1, World time: 48 cities worldwide(29 time zones, with daylight saving setting function) + UTC(Coordinated Universal Time) of time display, Home city time replacement function, Stopwatch(1/1000 second, total 100 hours, Speed measurement function(MAX1998unit/h, 2unit/h), Switching lap/split measurement), Timer(Set unit: 1 minute, Maximum set: 24 hours, Measuring unit is 1 second, Auto repeat), 5 time alarms(with only 1 snooze alarm) and time signal, Full auto-calendar, 12/24-hour format, LED light(Auto light function, afterglow function, Switching afterglow time(1.5 seconds / 3 seconds)), Monthly difference: within ±15 seconds, Battery life Approx 2 years, Size(height×width×depth)/weight 55×51.2×16.9mm/70g Review: very good product great quality recommend 👍🏻 - very good product great quality recommend 👍🏻 Review: 色使いは良いです！ ライトがちょっと暗めです。 ## Features - Drive system: Quartz - 20 ATM water resistant - Size(H x W x D): 55 x 51.2 x 16. 9 mm/70g - Instruction manual, exclusive BOX ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007V2ZZWS | | ASIN | B007V2ZZWS | | Additional Features | Alarm, LED light, World Time | | Age Range Description | Adult | | Amazon Bestseller | #127,788 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #894 in Men's Wrist Watches | | Band Color | Black | | Band Material Type | Resin | | Band Width | 22 Millimeters | | Batteries | 1 Lithium Metal batteries required. (included) | | Brand Name | Casio | | Case Diameter | 51 Millimeters | | Case Material Type | Resin | | Case Thickness | 35 Millimeters | | Clasp Type | Buckle | | Closure Type | Buckle | | Customer Reviews | 4.1 4.1 out of 5 stars (1,514) | | Date First Available | September 1, 2010 | | Dial Color | Blue | | Display | Analog | | Face Style | Solid | | Included Components | Instruction manual (English language not guaranteed) | | Is Discontinued By Manufacturer | No | | Item Weight | 70 Grams | | Item model number | GA-100-1A2DR | | Manufacturer | CASIO | | Manufacturer | CASIO | | Manufacturer Part Number | GA-100-1A2DR (G271) | | Model Number | GA-100-1A2DR | | Pattern | Solid | | Power Source | Battery Powered | | Product Dimensions | 9.6 x 11 x 9.8 cm; 70 g | | Series Number | 100 | | Shape | Round | | Style Name | Belt Type | | Warranty Type | No Warranty | | Watch Movement Type | Quartz | | Water Resistance Depth | 200 Meters | ## Images ![Watches G-SHOCK GA-100-1A2 Overseas model [Reimport] - Image 1](https://m.media-amazon.com/images/I/61zItIDF2DL.jpg) ## Questions & Answers **Q: Is this water proof or resistant? 200 meters? Whats the differance?** A: It's good to 200 Meters. The term water resistant is used for legal reasons as no watch is impervious to water (few things are) so the term resistant covers their whatever. **Q: How long does battery last and is it replaceable. My old one tried to replace it but didnt work** A: My watch is over 4 years old and takes a lot of abuse outdoors...the battery has held up VERY well! Supposedly its a 10yr battery life?? Check at the manufacturers site for proper specs. **Q: Does it show the time digitaly** A: Yes, it has a setting where instead of the date it will show the time. You switch between the two by pressing the bottom right-hand side button. **Q: Does watch have a backlight? Looks very dark** A: no it is very dark - there is an led at the bottom you can turn on but it does not light up the face well. My son really likes the watch but says it is very dark and that does make it hard to read at night ## Customer Reviews ### ⭐⭐⭐⭐⭐ very good product great quality recommend 👍🏻 *by A***ー on March 25, 2020* very good product great quality recommend 👍🏻 ### ⭐⭐⭐⭐ Review *by 弘***弘 on October 2, 2019* 色使いは良いです！ ライトがちょっと暗めです。 ### ⭐⭐⭐⭐⭐ Review *by R***A on October 13, 2024* 見た目で大きいかなと思いましたが、子どもは気に入り、つけてみると大きさも特に気にならず、見やすくていい時計だと言っています。 ## Frequently Bought Together - Casio G-Shock Watch For Men Ana-Digi Dial Resin Band - GA-100-1A2 - Casio Watch For Men Quartz, Analog-Digital Display - Casio G-Shock Analog-Digital World Time Watch --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/729454383-watches-g-shock-ga-100-1a2-overseas-model-reimport](https://www.desertcart.co.th/products/729454383-watches-g-shock-ga-100-1a2-overseas-model-reimport) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-30*