CASIO G-SHOCK GA-2100K-2ADR 2100 ANALOG-DIGITAL TRANSLUCENT SMOKY BLUE WATCH
GA-2100K-2ADR
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- 1 Year Warranty
Case size (L× W× H): 48.5 × 45.4 × 11.8 mm
Weight: 51 g
Case and bezel material: Carbon / Resin
Resin Band
Mineral Glass
Shock Resistant
Carbon Core Guard structure
200-meter water resistance
Approx. battery life: 3 years on SR726W X 2
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
1/100-second stopwatch
Measuring capacity:
00'00''00~59'59''99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit:
1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Alarm/hourly time signal
5 daily alarms
Hourly time signal
Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (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
Accuracy
Accuracy: ±15 seconds per month
Other features
12/24-hour format
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Regular timekeeping:
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date
The GA-2100K-2ADR is the smoky blue variant of the nightlife-inspired GA-2100K — the coolest-toned and most futuristic of the three K-series colourways. Translucent blue resin with a matte fog finish across the bezel and band creates a hazy, atmospheric quality that evokes the blue-shifted lighting of late-night venues — laser beams cutting through smoke, neon reflecting off dark surfaces. The smoky blue case partially reveals the internal Carbon Core Guard structure through the semi-transparent material, and neon accent details provide sharp colour points against the cool haze. A newly developed smooth dial surface with piano-black gloss anchors the face.
Module 5611 is identical across all GA-2100K variants and the broader GA-2100 range: analog-digital with two hands and a day sub-dial, hand shift, world time across 31 time zones (48 cities), 1/100-second stopwatch with split time, 24-hour countdown timer, five daily alarms, double LED Super Illuminator, Neobrite lume, Carbon Core Guard, and a full auto-calendar to 2099. At 48.5 × 45.4 × 11.8 mm and 51 grams. Shock resistant, 200-metre water resistant. SR726W × 2, approximately three-year battery life.
At a Glance
Why You'll Love It
- The smoky blue is the most futuristic of the three GA-2100K colourways. Blue-haze translucent resin with a matte fog finish reads as cyberpunk, sci-fi, and neon-lit — it's the colour temperature of blue laser light in a dark club, or neon signs reflected in wet asphalt. Where the amber K-5A is warm and atmospheric, the blue K-2A is cool and electric. This is the nightlife variant that leans hardest into the futuristic side of the concept.
- The matte fog finish on the translucent blue bezel and band diffuses light across the surface — creating a frosted, hazy quality rather than sharp transparency. Through the smoky blue material, the Carbon Core Guard structure and internal components are partially visible, adding mechanical depth to the cool-toned exterior.
- The piano-black glossy dial provides a reflective dark centre behind the analog hands — the same newly developed smooth surface used across all three K-series variants. The deep black creates a striking contrast against the cool blue translucent bezel, with neon accent details sparking between the two like laser strobes.
- At 51 grams and 11.8 mm thin, the GA-2100K is built for extended wear — nights out, festivals, travel. No wrist fatigue, no sleeve snagging. The ultra-light resin construction with Carbon Core Guard delivers G-Shock toughness without the weight.
- Full Module 5611 functionality: hand shift, world time (48 cities), double LED Super Illuminator, five daily alarms, 1/100-second stopwatch with split time, 24-hour countdown timer. The nightlife exterior doesn't compromise the spec sheet.
- 200-metre water resistance and shock resistance. Whether it's rain at a festival, a drink spill at a club, or a bump in a crowd, the GA-2100K handles it without concern.
Perfect For
Key Features
- Translucent smoky blue — matte fog finish — Semi-transparent blue bezel and band with matte haze texture. Partially reveals internal structure. The coolest-toned, most futuristic K-series variant.
- Piano-black dial — Newly developed smooth glossy surface with deep reflective black. High contrast against the blue translucent bezel.
- Neon laser-light accents — Bright neon colour details against the smoky blue body. Laser-strobe aesthetic.
- Ultra-light — 51 g, 11.8 mm — Carbon Core Guard resin construction. Comfortable for all-night wear.
- Hand shift + Double LED Super Illuminator — Hands retract for clear digital reading. Separate LEDs for face and digital display.
- 200-metre water resistance (20 BAR) — Suitable for swimming, snorkelling, and recreational water sports.
Technical Specifications
| Case & Build | |
|---|---|
| Model Number | GA-2100K-2ADR |
| Module | 5611 |
| Case Material | Carbon / Resin |
| Bezel | Translucent Smoky Blue Resin — Matte Finish |
| Dial | Piano-Black Gloss (Newly Developed Smooth Surface) |
| Construction | Shock Resistant, Carbon Core Guard |
| Glass | Mineral Glass |
| Case Size (L × W × H) | 48.5 × 45.4 × 11.8 mm |
| Weight | 51 g |
| Water Resistance | 200 Metres (20 BAR) |
| Band | |
|---|---|
| Material | Resin — Translucent Smoky Blue, Matte Finish |
| Wrist Size | 145 – 215 mm |
| Clasp | Tang Buckle |
| Movement & Power | |
|---|---|
| Movement Type | Quartz Analog-Digital |
| Analog Display | 2 hands (Hour, Minute — moves every 20 seconds), 1 sub-dial (Day) |
| Digital Display | Hour, Minute, Second, AM/PM, Month, Date |
| Hand Shift | Yes — hands retract for unobstructed digital view |
| Accuracy | ±15 seconds per month |
| Battery | SR726W × 2 |
| Battery Life | Approx. 3 years |
| Display & Light | |
|---|---|
| Lume | Neobrite |
| Backlight | Double LED Super Illuminator (Face + Digital, separate LEDs) |
| Illumination Duration | Selectable 1.5s or 3s, afterglow |
| LED Colour | White |
| Functions | |
|---|---|
| World Time | 31 time zones (48 cities + UTC), DST on/off |
| Stopwatch | 1/100-second (first 60 min) / 1-second (after 60 min), 24-hour capacity; elapsed, split, 1st–2nd place |
| Countdown Timer | 1-second unit, 1 sec – 24 hours |
| Alarm | 5 daily alarms + hourly time signal |
| Calendar | Full auto-calendar to 2099 |
| Time Format | 12/24-hour |
| Mute | Button tone on/off |
Best Matched With
Frequently Asked Questions
Why Buy from City Chain Singapore
Extra $15 OFF with min. $200 spend
Use Code: FORYOU15
Extra $30 OFF with min. $400 spend
Use Code: FORYOU30
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.
