Model code
GA-100-1A2
Current modelWatches & Lifestyle · Watches
Casio GA-100-1A2
Casio • G-SHOCK • New at launch
Casio GA-100-1A2 is part of Casio's G-SHOCK range. Its recorded highlights include Model code: GA-100-1A2; Case size (L× W× H): 55 × 51.2 × 16.9 mm.
This is an independent, read-only directory entry. UnderOneRoof does not sell this product or accept orders.
Model overview
Casio GA-100-1A2 at a glance
Casio GA-100-1A2 is part of Casio's G-SHOCK range. Key recorded details include Model code: GA-100-1A2; Case size (L× W× H): 55 × 51.2 × 16.9 mm; Weight: 70 g; Band: Resin Band. No numeric manufacturer or Pakistan retail price is currently recorded; the price status was checked 21 Aug 2026. Specifications are attributed to Official Casio product page.
Data note: specifications describe this exact model record. Price, stock, warranty, regional configuration and regulatory status can change, so verify those details with the linked source or seller.
The essentials
Key model details
Six useful facts from this exact recordCase size (L× W× H)
55 × 51.2 × 16.9 mmWeight
70 gBand
Resin BandWater resistance
200-meter water resistancePower supply and battery life
Approx. battery life: 2 years on CR1220Complete model information
Full specifications
33 recorded details, arranged by subject
Model & collection
Exact model identity, collection and release information.
- Model code
- GA-100-1A2
- Release date
- 2010
Case & construction
Case dimensions, weight, materials and durability.
- Case size (L× W× H)
- 55 × 51.2 × 16.9 mm
- Weight
- 70 g
- Case and bezel material
- Resin
- Construction
- Shock Resistant,Magnetic Resistant
- Glass
- Mineral Glass
- Compatible band size
- 145 to 215 mm
Band & fit
Band material, fastening and fit information.
- Band
- Resin Band
Timekeeping & functions
Accuracy, display, calendar, alarms and time functions.
- World time
- World time 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping
- Stopwatch
- 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)
- Timer
- 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
- Alarm/hourly time signal
- 5 daily alarms (with 1 snooze alarm),Hourly time signal
- Calendar
- Full auto-calendar (to year 2099)
- Accuracy
- Accuracy: ±15 seconds per month
Power & resistance
Battery life, charging and environmental resistance.
- Water resistance
- 200-meter water resistance
- Power supply and battery life
- Approx. battery life: 2 years on CR1220
Connectivity & features
Wireless links, sensors, apps and additional functions.
- Light
- LED light Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
- Light color
- LED:Amber
- Other features
- 12/24-hour format,Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) Digital: Hour, minute, second, pm, month, date, day
More details
Additional model information recorded for this product.
- Official manufacturer price
- Not publicly listed by the manufacturer
- Price verification
- Official catalog checked on 2026-08-21
Record information
Classification, catalog and review information retained with this directory entry.
- Brand
- Casio
- Model
- Casio GA-100-1A2
- Department
- Watches & Lifestyle
- Category
- Watches
- Subcategory
- G-SHOCK
- Product type
- watch
- Condition
- New
- Availability status
- Current official catalog model; Pakistan availability should be confirmed
- SKU
- GA-100-1A2DR
- Image provenance
- Exact model-series image stored locally after verification on 2026-08-09
- Record review
- Authenticity, identity, image and duplicate checks passed on 2026-08-09
Before you decide
What to verify for this g-shock
These checks are tailored to the product department and help separate permanent model specifications from details that can vary by seller or market.
- 01
Confirm the exact Casio GA-100-1A2 variant, included accessories and local warranty terms before purchase.
- 02
Use the displayed price as a dated reference only; current price and stock can differ by retailer, city and configuration.
- 03
Confirm the exact case, dial and band code because visually similar watch variants can use different materials and finishes.
- 04
Check water resistance, battery or solar system, dimensions and local service support against your intended use.









