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CASIO G-shock GWX-8904K-7JR GWX-8904K-7 Solar 20 bar watch

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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 https://ippojapanwatch.com 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 GWX-8904K-7JR GWX-8904K-7 Solar 20 bar watch

Product specification

  •  Case size (length x width x thickness)
  • 55.1 x 52.5 x 16.3 mm
  • mass
  • 80 g
  • Case / bezel material
  • Resin / stainless steel
  • band
  • Resin band
  • structure
  • Impact resistant structure (shock resist)
  • Waterproof
  • Water resistant to 20 bar
  • Time adjustment
  • Radio clock Japan / North America / Europe / China region compatible MULTIBAND6
  • Power supply / battery life
  • Tough solar (solar charging system)
  • Exterior
  • Glass
  • Inorganic glass
  • Surface treatment
  • Rainbow IP (bezel part)
  • Band wearable size
  • 145 to 215 mm
  • Clock function
  • World time
  • World time: Time display of 48 cities (31 time zones, with daylight saving time setting function) + UTC (Coordinated Universal Time)
  • Moon data
  • Moon data (moon age / moon shape display)
  • Tide graph
  • Tide graph (tide circumference: 3 levels display, preset tide data of 100 points in the world, with high tide time set)
  • Stopwatch
  • Stopwatch (1/100 second, 60 minutes total, with split)
  • timer
  • Timer: Timer for interval measurement that can specify up to 2 sets of time (set unit: 5 seconds, maximum set: 99 minutes 55 seconds, measurement in 1 second units, with repeat (can be set from 1 to 10 times) function)
  • Alarm / time signal
  • 5 time alarms (only 1 with snooze function), time signal
  • Light
  • LED backlight (with full auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds))
  • Light color
  • LED: white
  • calendar
  • Fully automatic calendar
  • Operation sound ON / OFF switching function
  • Operation sound ON / OFF switching function
  • Power saving function
  • Power saving function (In a dark place, the display is turned off after a certain period of time to save power)
  • Battery display / warning
  • Battery indicator display
  • Drive time
  • When using the drive time function without solar power generation from the time of full charge: Approximately 10 months When using the power saving state: Approximately 33 months
  • accuracy
  • * If radio waves are not received, it will operate with normal quartz accuracy (average monthly difference ± 15 seconds).
  • Other functions
  • 12/24 hour system display switching
  • Time adjustment details
  • Hometime city (city that supports reception function) / Received radio wave Tokyo, Seoul, Taipei / Japanese standard radio wave JJY40 / JJY60 (Honolulu), (Ancaregi), Vancouver, Los Angeles, Edmonton, Denver, Mexico City, Chicago, New York, Harifax , St. John's / American standard radio wave WWVB Lisbon, London, Madrid, Paris, Rome, Berlin, Stockholm, Athens, (Moscow) / British standard radio wave MSF / German standard radio wave DCF77 Hong Kong, Beijing / China standard radio wave BPC * Each city in parentheses may receive the signal if the conditions are good.
  • Radio reception function: Automatic reception (up to 6 times / day) (China radio waves up to 5 times / day) / manual reception, <Japan> Received radio waves: JJY, frequency: 40kHz / 60kHz (model compatible with both Fukushima and Kyushu stations) < North America area> Received radio wave: WWVB, Frequency: 60kHz <Europe area> Received radio wave: MSF / DCF77, Frequency: 60kHz / 77.5kHz <China> Received radio wave: BPC, Frequency: 68.5kHz When set, the station matched to the city is received. The time difference is set according to the selected city.
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    CASIO G-shock GWX-8904K-7JR GWX-8904K-7 Solar 20 bar watch
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