--- type: product title: G-Shock GA-2100K-1AER Analogue Digital Watch handle: g-shock-ga-2100k-1aer-analogue-digital-watch url: >- https://www.hsjohnson.com/products/g-shock-ga-2100k-1aer-analogue-digital-watch sku: GA-2100K-1AER price: '10900.0' currency: GBP tags: - in_stock - Mens - new-arrival - Womens collections: - Watches - G-Shock - In Stock - All - Mens Watches - Womens Watches - OrderlyEmails - Recommended Products - New Arrivals variants: - title: Default Title price: '109.00' sku: GA-2100K-1AER images: - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER1_Custom.jpg?v=1783667732 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER2_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER4_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER5_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER7_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER8_Custom.jpg?v=1783667731 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER9_Custom_-fotor-2026070992654.jpg?v=1783667732 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER6_Custom_-fotor-2026070992459.jpg?v=1783667732 - >- https://cdn.shopify.com/s/files/1/0621/1164/5922/files/GA-2100K-1AER3_Custom_-fotor-2026070992346.jpg?v=1783667731 created_at: null updated_at: null metafields: shopify.case-color: '["gid://shopify/Metaobject/54487613666"]' shopify.watch-display: >- ["gid://shopify/Metaobject/54404710626","gid://shopify/Metaobject/56300667106"] shopify.watch-features: >- ["gid://shopify/Metaobject/56300732642","gid://shopify/Metaobject/54487679202","gid://shopify/Metaobject/54404776162"] shopify.age-group: '["gid://shopify/Metaobject/54405955810"]' shopify.band-color: '["gid://shopify/Metaobject/54487613666"]' shopify.dial-color: '["gid://shopify/Metaobject/54409167074"]' shopify.watch-material: '["gid://shopify/Metaobject/54564290786"]' global.tag-18-pricing-rule: '05 - Beat all small: combined' global.tag-21-minimum-price: '60' global.tag-22-maximum-price: '15' --- Immerse yourself in nocturnal elegance with this GA-2100K-1AER, a watch born from the vibrant pulse of nightlife culture. Inspired by the electric atmosphere of clubs and festivals, this timepiece merges aesthetic sophistication with G-SHOCK's legendary durability. The dial showcases a meticulously engineered finish—a piano-black surface with high-gloss depth that commands attention. Neon accents punctuate the design like strobe lights cutting through darkness, while the matte, translucent bezel and band deliver tactile contrast reminiscent of atmospheric haze and movement. Clean lines define the GA-2100 silhouette, creating a refined foundation where textures and tones dialogue across the case. Smoke-tinged luminosity meets contemporary edge—a watch that captures the intrigue of after-hours energy without compromise on wearability or resilience. Forward-thinking design meets uncompromising toughness. A statement piece for those who embrace the night. **We are a Casio UK authorised dealer** **New boxed stock with full retail boxes & paperwork** **Basic Information** Case size (L× W× H) 48.5 × 45.4 × 11.8 mm Weight 51 g Case and bezel material Carbon / Resin　 **Band** Resin Band Construction Shock Resistant Carbon Core Guard structure Water resistance 200-metre water resistance Power supply and battery life Approx. battery life: 3 years on SR726W X 2 Country of origin Thailand **Exterior** Glass Mineral Glass Compatible band size 145 to 215 mm Other Neobrite **Watch Features** World time 31 time zones (48 cities + Coordinated Universal Time), daylight saving on/off Stopwatch 1/100-second stopwatch Measuring capacity: 00'00''00 to 59'59''99 (for the first 60 minutes) 1:00'00 to 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 Timer 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 Light 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 colour 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: Analogue: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date