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CASIO G-SHOCK GBD-H1000-4A1JR GBD-H1000-4A1 solar drive 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

 GBD-H1000 series equipped with heart rate monitor and GPS function of G-SHOCK sports line "G-SQUAD". Based on the G-SHOCK brand color red, we adopted a black IP bezel and black skeleton resin, and used rose gold as the accent color. In terms of functionality, it is equipped with an optical sensor that can measure heart rate, an acceleration sensor that can measure the number of steps, and an orientation, altitude / barometric pressure, and temperature sensor. The GPS function makes it possible to measure mileage, speed, pace, etc. VO2max, which is a standard for cardiopulmonary capacity, can be measured from the measured values, and it can also be used as an index for strengthening endurance such as running. In addition, the dedicated app allows you to check your fitness level and training progress, and automatically create a training plan. For data analysis such as VO2max, the library of FIRST BEAT, which has a good reputation in sports science, is used. It is supported by a more accurate algorithm. The exterior uses a back cover that reduces interference with the back of the hand, a soft urethane band with a high fit, two-color molded buttons with excellent operability, and a high-definition MIP liquid crystal with high visibility. It also supports USB charging and solar charging, pursuing practicality.

Product specification

  • Case size (length x width x thickness)
  • 63 x 55 x 20.4 mm
  • mass
  • 101 g
  • Case / bezel material
  • Resin / stainless steel
  • band
  • Resin band
  • Construction
  • Impact resistant structure (shock resist)
  • Waterproof
  • Water resistant to 20 bar
  • Time adjustment
  • Bluetooth: Connects to a smartphone and automatically adjusts the time
  • GPS satellite radio wave reception: Automatic reception (<when ​​mobile link function is not used> time reception, maximum 1 time / day), manual reception (position reception, time reception)
  • Power supply / battery life
  • Battery: Lithium-ion battery Charging method ・ Time: Solar power (solar charging system), time mode (including step count and notification function) can be supported only by solar charging *. * When charging in a room (500 lux) under fluorescent light for about 8 hours every day and charging by the window (10000 lux) on a sunny day for 2 hours in a week. Charging system with a dedicated charging cable (a device with a USB terminal (Type-A) is required), time required for full charging: up to about 2.5 hours
  • Sensor function
  • Altitude measurement (relative altimeter): Measurement range: -700m to 10,000m, measurement unit: 1m, measurement interval: 2 minutes / 5 seconds, altitude correction function (reference altitude setting function), altitude difference measurement function: -3,000m to + 3,000m, altitude trend graph
  • Barometric pressure measurement: Measurement range: 260hPa to 1,100hPa, measurement unit: 1hPa, constant barometric pressure measurement (every 2 hours), barometric pressure correction function, barometric pressure trend graph, barometric pressure trend information function
  • Direction measurement: Measurement range: 0 ° to 359 °, 16-direction display, 60-second continuous measurement function, automatic horizontal correction function, direction correction function (3-point correction, figure-eight correction), magnetic declination correction function
  • Sensors: Optical sensor (heart rate monitor), acceleration (pedometer), magnetism (azimuth meter), pressure (altimeter / barometer), temperature (thermometer)
  • Temperature measurement: Measurement range: -10 to 60 ° C, measurement unit: 0.1 ° C, temperature compensation function
  • Mobile link / app linkage function
  • Mobile link function
  • Mobile link function (function interlocking by Bluetooth communication with compatible mobile phones)
  • App
  • Compatible with "G-SHOCK MOVE"
  • App linkage function
  • Easy clock setting: World time city setting (about 300 cities), Home time / World time display replacement, Timer setting, Time alarm setting, Operation sound ON / OFF setting, Vibration setting Notification function: Incoming call, mail reception, SNS new arrival, Notification of calendar notification, reminder notification, data update function: Update of time zone and summer time rule data
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