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CASIO G-SHOCK GMA-S120GB-1AJF GMA-S120GB-1A world time 20 ATM watch

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Terms & conditions
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How Do I Return An Item?

If you are not happy with your purchase and wish to return an item, please contact us within 7 days from receiving your order.
Please provide your order number as well as the reason for your return. Our customer service team will review the return request and will send further instructions if the return is approved.
Only items purchased directly from will be accepted. For products purchased from authorized retailers, please get in touch with them directly for returns.
Returned items must be in original packaging, including any accessories, manuals, and documentation.
Returned items must be unused, in the same condition that we sent it to you, and in their original packaging. Stains, folded cards, broken seals/ plastic foiling broken will not be accepted. If the condition of the product shipped back to us is not in acceptable condition we reserve the right to not refund or exchange. Products that have been personalized cannot be refunded or exchanged.
Non-returnable items include items purchased through retailers, incorrect products purchased, and damaged products through customer mishandling.
Returns made without receipt may be refused. Ippojapanwatch reserves the right to deny any return.




G-Shock is a line of watches manufactured by Japanese electronics company Casio, designed to resist mechanical shock and vibration. G-Shock is an abbreviation for Gravitational Shock. The watches in the G-Shock line are designed primarily for sports, military and outdoors-oriented activities; nearly all G-shocks are digital or a combination of analog and digital and have a stopwatch feature, countdown timer, electroluminescent backlight and 200-metres of water resistance.

Product Description

 CASIO G-SHOCK GMA-S120GB-1AJF GMA-S120GB-1A world time 20 ATM watch

Product specification

  •  Case size (length x width x thickness)
  • 49×45.9×15.8mm
  • mass
  • 55 grams
  • Case and bezel material
  • resin
  • band
  • resin band
  • structure
  • Impact resistant structure (shock resist)
  • Anti-magnetic watch (JIS class 1)
  • Waterproof
  • 20 ATM water resistant
  • Power supply and battery life
  • Battery life: about 3 years
  • Exterior
  • glass
  • inorganic glass
  • Band wearable size
  • 135-200mm
  • others
  • Neo Bright
  • clock function
  • world time
  • World time: 48 cities around the world (29 time zones, with summer time setting function) + UTC (Coordinated Universal Time) time display, home time city replacement function
  • stopwatch
  • Stopwatch (1/1000 second, 100 hour meter, speed measurement function (MAX1998 unit/h, 2 unit/h unit), lap/split measurement switching)
  • timer
  • Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1 second units, auto repeat)
  • Alarm/time signal
  • 5 time alarms (only 1 with snooze function), time signal
  • light
  • LED light (with auto light, afterglow function, afterglow time switching (1.5 seconds/3 seconds))
  • light color
  • LED: Amber
  • calendar
  • full auto calendar
  • accuracy
  • Average monthly difference: ±15 seconds
  • Other functions
  • 12/24 hour display switching
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