Men’s G-Shock GA-100-1A1ER Watch Chronograph Alarm Black 48.7mm

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  • Men's G-Shock GA-100-1A1ER Watch Chronograph Alarm Black 48.7mm
  • Men's G-Shock GA-100-1A1ER Watch Chronograph Alarm Black 48.7mm
  • Men's G-Shock GA-100-1A1ER Watch Chronograph Alarm Black 48.7mm


Out of stock

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Men’s G-Shock GA-100-1A1ER watch is the handsome chronograph watch that has a 48.7 mm dial which is made of tough resin with screwdriver and wrench resistant face; perfect for those days where you’re less likely to stay put inside your own home or office! My favorite features about this Men’s G-shock Watches are simple to navigate date window, three alarms that can be programmed in the locations of your choice using 12/24 hour formats, countdown timer (with periodic alarm), 1/1000 second digital stopwatch with split time measurement function, manual and automatic calendar up until year 2099, lumin.


Order this G-shock Watch now before it goes out of stock. Tick Tock Watches are an amazing way to have the best customer service and next-day delivery for your G-Shock Watch.


  • Men’s G-shock GA-100-1A1ER Watch Chronograph Alarm Black 48.7 mm
  • Up to 200M water resistance
  • Low temperature resistant for added protection
  • A reverse LCD display makes for crisp viewing
  • A hand shift function gives you easy viewing of all details
  • An accurate 1/100- second stopwatch features A velocity indicator gives you average journey speeds
  • The watch has a world-time function
  • 5 alarms with snooze function are included for convenience A countdown timer is included An automatic calendar keeps you on track without adjustments once set A 100 lap memory lap timer enhances your exercise
  • This collection features a new carbon core structure
  • 2 years of Warranty by Tick Tock Watches

Brand Casio
Watch type men’s Casio wrist warch
Style type men’s Casio warch
Model Number:  GA-100-1A1ER
Case Width: 48.7 mm
Case Depth: 17 mm
Display Type: Chronograph
Material: Plastic/Resin
Movement: Japanese
Strap Type: Rubber Strap
Gender Gents
Dial Colour: LCD
Strap Colour: Black
Clasp Type: Strap buckle
Water Resistance: 200M
Packaging: Official Presentation Box
Warranty: 2 Years of Warranty by Tick Tock Watches



Legendary Japanese electronics company Casio is loved for its range of innovative and reliable watches. Casio offers both analogue and digital watches for men and women in a variety of styles and colours, perfect for everyday wear, sportswear and more adventurous activities. The G-Shock and Baby-G watches are perfect for keen sportspeople, thanks to their durability, excellent time keeping and advanced sports features. Meanwhile, the classic unisex Casio watch adds a little retro flair to any outfit. Though simple, the design is iconic, and an absolute must for any watch lover’s collection. Available in gold, rose gold, black and silver, there’s a colour to match any style. The brand also produces a range of high-quality, professional watches ideal for those who lead an adventurous lifestyle. The premium pieces are mud and water resistant, and include accurate compasses to help keep you firmly on the trail. Explore the full range of Casio’s analogue & digital watches, keep it classic with the Casio gold watch collection or browse their feature rich selection of sports watches.