--- product_id: 727611548 title: "GA-100-1A2 Men's G-Shock G-Shock Quartz Black Watch" brand: "casio(カシオ)" price: "$232.62" currency: USD in_stock: true reviews_count: 5 category: "Casio(カシオ)" url: https://www.desertcart.us/products/727611548-ga-100-1a2-mens-g-shock-g-shock-quartz-black store_origin: US region: United States of America --- # 200m water resistance Quartz movement, reliable power Chronograph precision timing GA-100-1A2 Men's G-Shock G-Shock Quartz Black Watch **Brand:** casio(カシオ) **Price:** $232.62 **Availability:** ✅ In Stock ## Summary > ⏳ Own time, own style — the G-Shock that means business and adventure. ## Quick Answers - **What is this?** GA-100-1A2 Men's G-Shock G-Shock Quartz Black Watch by casio(カシオ) - **How much does it cost?** $232.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/727611548-ga-100-1a2-mens-g-shock-g-shock-quartz-black) ## Best For - casio(カシオ) enthusiasts ## Why This Product - Trusted casio(カシオ) brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **200m Water Resistance:** Dive into your day without worry—built to handle serious aquatic challenges - • **Rugged 55mm Resin Case:** Bold, durable design that stands out in any boardroom or weekend adventure - • **Dual Analog-Digital Display:** Seamlessly blends classic style with modern functionality for the multitasking pro - • **Perpetual Calendar & World Time:** Stay globally synced and never miss a beat, no matter your timezone - • **Scratch-Resistant Mineral Crystal:** Keeps your watch face pristine, reflecting your polished professional image ## Overview The Casio G-Shock GA-100-1A2 is a robust men's sport watch featuring a large 55mm black resin case with blue accents, combining analog and digital quartz movement for precise timekeeping. It offers a scratch-resistant mineral crystal, 200-meter water resistance, and multiple functions including chronograph, world time, alarm, and perpetual calendar, making it a versatile and reliable companion for professionals who demand durability and style. ## Description Black resin case with a black resin strap. Fixed bezel. Black dial with blue hands and index hour markers. Dial Type: Analog-Digital Quartz Movement Scratch resistant mineral crystal. Solid case back. Round case shape, case size: 55 x 51 2 mm, Case Thickness: 16 inches 9mm Tang clasp. Water resistant at 200 meters / 660 feet. Functions: Perpetual calendar, chronograph, world time, alarm, month, date, date, GMT, hour, minute, second, countdown timer Sport watch style. Item Variations: GA100 1A2, GA100 1A2, GA1001A2 Casio G-Shock Black Dial World Time Chronograph Mens Watch GA-100-1A2. Review: Difficult to see the dial clearly and light is poor but I am colour blind so maybe just me Review: Muy buen reloj 100% original compra recomendada si está con algún descuento ## Features - Casio Men's G-Shock GA-100-1A2 Watch - Band Width: 22.00 mm - Case Diameter: 55mm - Item Shape: Round ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003I62VDW | | Amazon Bestseller | #955,169 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #8,325 in Men's Wrist Watches | | Batteries | 1 Lithium Metal batteries required. (included) | | Customer Reviews | 4.4 4.4 out of 5 stars (1,171) | | Date First Available | April 30, 2018 | | Department | Womens | | Is Discontinued By Manufacturer | No | | Item model number | GA-100-1A2CR | | Manufacturer | Casio | | Product Dimensions | 10.4 x 11.8 x 10.6 cm; 168 g | | Release date | February 15, 2020 | ## Images ![GA-100-1A2 Men's G-Shock G-Shock Quartz Black Watch - Image 1](https://m.media-amazon.com/images/I/615bXuSKPRL.jpg) ## Questions & Answers **Q: Please can somebody tell me if it will fit a ten years old child?** A: The long side of the watch band has holes all the way to where the buckle nearly meets the body of the watch. The band can be adjusted down to a wrist that measures 5.75 inches around. It looks a little odd adjusted all the way to its smallest size so if the kid has some meat on him and not too slender (like I was) it will be fine and he'll grow into it. It's an X-large watch face so if the child is quite slim this watch will just make it more aesthetically obvious as it hangs off the little guy. **Q: How do you adjust the Analog hands? I dont see a dial for them.** A: You can calibrate the watch hands by holding adjust button until the 2nd beep. Once engaged, make sure both hands are exactly at the 12 o’ clock position, then press adjust again to return to the time screen. **Q: the advertising says the band is black but the pictures show the band being another color. which is it?** A: The band on the one that I bought is black. Same color as the face. **Q: What is the difference between an Xl and regular sized G-shock watch?** A: Honestly, I don't think there was a difference. I bought this and it turned out to be the same size as the other men's G-Shock watch.. ## Customer Reviews ### ⭐⭐⭐⭐ Review *by K***. on August 11, 2025* Difficult to see the dial clearly and light is poor but I am colour blind so maybe just me ### ⭐⭐⭐⭐⭐ Review *by W***9 on February 20, 2023* Muy buen reloj 100% original compra recomendada si está con algún descuento ### ⭐⭐⭐⭐ Review *by C***N on January 29, 2022* Buen reloj, lo único malo como en todos los modelos G-Shock de la serie GA de tamaño grande es la pésima iluminación ## Frequently Bought Together - Casio Men's GA-100 XL Series G-Shock Quartz 200M WR Shock Resistant Watch - Casio DW9052 Series | Men’s Digital Watch | G-Shock | 1/100 SEC Stop Watch | Countdown Timer | LED Light | 200M WR | Shock Resistant | Multi Alarm | Auto Calendar | Dual Time | 2 Yr Batt - Casio GA-700 Red One Size --- ## 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.us/products/727611548-ga-100-1a2-mens-g-shock-g-shock-quartz-black](https://www.desertcart.us/products/727611548-ga-100-1a2-mens-g-shock-g-shock-quartz-black) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*