Introduction

The Casio G-Shock AWG-M510 is a rugged and stylish timepiece designed for durability and precision. Manufactured by Casio, this watch features a multi-band atomic timekeeping system, solar power, and a variety of functions including world time, stopwatch, and alarm. Launched in 2023, it is priced at approximately $200. With its shock-resistant construction and water resistance up to 200 meters, the AWG-M510 is perfect for outdoor enthusiasts and everyday wearers alike.

Casio G-Shock AWG-M510 Specifications

• Accuracy at normal temperature: ±15 seconds a month (with no signal calibration)
• Timekeeping: Hour, minutes, seconds, p.m. (PM), year, month, day, day of the week, alarm countdown
  • Time format: 12-hour and 24-hour
  • Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
  • Other: Home City code (can be assigned one of 48 city codes); Standard Time/ Daylight Saving Time (summer time)
• Time Calibration Signal Reception: Auto receive 6 times a day (5 times a day for the Chinese calibration signal); Remaining auto receives cancelled as soon as one is successful; Manual receive
  • Receivable Time Calibration Signals: Mainflingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz); 
    Anthorn, England (Call Sign: MSF, Frequency: 60.0 kHz);
  • Fort Collins, Colorado, the United States
  • (Call Sign: WWVB, Frequency: 60.0 kHz); 
    Fukushima, Japan (Call Sign: JJY, 
    Frequency: 40.0 kHz); 
    Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60.0 kHz) ; 
    Shangqiu City, Henan Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
• World Time: 48 cities (31 time zones)
  • Other: Daylight Saving Time/Standard Time
• Stopwatch:
  • Measuring unit: 1/100 second
  • Measuring capacity: 59'59.99"
  • Measuring modes: Elapsed time, split time, two finishes
• Countdown Timer:
  • Measuring unit: 1 second
  • Countdown range: 100 minutes
  • Countdown start time setting range: 1 to 100 minutes (1-second increments)
• Alarms: 5 Daily alarms; Hourly Time Signal
• Illumination: LED; 
  Selectable illumination duration; 
  • Full Auto Light Switch Other: 
    Battery power indicator;
    Power Saving;
  • Button operation tone on/off Power Supply: Solar panel and one rechargeable battery
    Approximate battery operating time: Six months (from full charge to Level 4) under the following conditions:
    • Watch not exposed to light
    • Internal timekeeping
    • Display on 18 hours per day, sleep state 6 hours per day
    • 1 illumination operation (1.5 seconds) per day
    • 10 seconds of alarm operation per day
    • 4 minutes of signal reception per day
    • 1 hand movement for easy viewing of the digital dials per day
      Frequent use of illumination runs down the battery.

Specifications are subject to change without notice.

Description

The Casio 5230 Watch G-Shock AWG-M510 boasts a sleek and robust design, with a titanium alloy case and band that provides both strength and comfort. The watch features a large, easy-to-read display with multiple dials and indicators, making it simple to navigate through its various functions. The full auto LED light ensures visibility in low-light conditions, and the afterglow feature allows for temporary illumination after the light is turned off.

The watch is also equipped with advanced timekeeping features such as atomic synchronization and solar power, ensuring that it remains accurate and functional without the need for battery replacements. Its water resistance and shock resistance capabilities make it an excellent choice for outdoor activities.

Charging the Watch

1. Remove the watch from your wrist and place it in a brightly lit area.
   • The watch may become hot when exposed to light for charging. Take care to avoid burn injury.
   • Avoid charging in locations where it is very hot.

Power Levels

You can get an idea of the watch’s power level by observing the battery power indicator

• If the battery power indicator shows L or is not displayed at all, it means that battery power is very low. Expose the watch to bright light for charging as soon as possible.

Power Saving

• Leaving the watch in a dark location for about 60 to 70 minutes between the hours of 10 p.m. and 6 a.m. will cause the display to go blank.
• Leaving the watch in a dark location for about six or seven days will cause the hour and minute hands to stop at 12 o’clock. All functions are disabled, but timekeeping is maintained.

Configuring Current Time and Date Settings Automatically

Date and time settings are kept accurate using information provided by a time calibration signal.

• Time calibration signals can be received using Auto Receive or Manual Receive. Normally, you should set up the watch for Auto Receive of the current time and date.
• If you are in an area where a time calibration signal cannot be received, you need to adjust time and date settings manually.

For information about the manual receive operation and time calibration signal reception ranges, refer to the Operation Guide available at the CASIO website.

Important! For the watch to be able to receive a time calibration signal, its Home City setting must be one where time calibration signal reception is normally supported. For details about the cities where calibration signal reception is supported, see the “City Code Table” at the back of this manual.

Auto Receive

1. Enter the Timekeeping Mode.
2. Leave the watch near a window between midnight and 5:00 a.m.
   • When the receive operation is successful, the time and date settings will be adjusted automatically.
   • If you are unable to receive a signal, check the Operation Guide available at the CASIO website to ensure the watch is in a suitable location.

Configuring Home City, Time and Date Settings Manually

• Be sure to set your Home City before using this watch.
• If you are in an area where a signal cannot be received, adjust time and date settings manually.

1. In the Timekeeping Mode, hold down A for about two seconds until ADJ appears in the right digital dial.

2. Press C to move the flashing in the sequence shown below to select a setting.

   

3. Use D and B to change the selected setting.

   Screen		To do this:	Do this:
   		Change the city code	Use D(East) and B(West).
   		Cycle between Auto DST (AUTO), Daylight Saving Time (ON) and Standard Time (OFF)	Press D.
   		Toggle between 12-hour (12H) and 24-hour (24H) timekeeping
   		Reset the seconds to 00
   		Change the hour or minute	Use D (+) and B (–).
   		Change the year, month, or day

4. Press A to exit the setting screen.

Mode Selection and Operations

• Press C to change the mode.
• To return to the Timekeeping Mode from any other mode, hold down C for at least four seconds.

Misaligned Hands

The analog hands may become misaligned as described below if the watch is exposed to strong magnetism, impact, or other abnormal conditions.

• Analog time and digital time are different from each other
• Analog time is not correct even though signal reception is being performed

If this happens, refer to “Hand Home Position Adjustment” in the Operation Guide available at the CASIO website and adjust the hand alignment.

Setup Guide

To operate the Casio 5230 Watch G-Shock AWG-M510, 

• Start by setting the time and date using the mode button to cycle through different settings. Use the adjust button to change values. 
• For atomic timekeeping, ensure the watch is in an area where it can receive signals from atomic clocks.
• To configure additional features such as alarms or the stopwatch, refer to the user manual for detailed instructions. 
• Pairing with other devices is not necessary as this watch operates independently.

City Code Table

Indicates cities where time calibration signal reception is supported.

• Based on data as of December 2010. 
• The rules governing global times (UTC offset and GMT differential) and summer time are determined by each individual country.

Pros & Cons

Pros

• Durable Construction: Built with titanium alloy, it is highly resistant to scratches and impacts.
• Accurate Timekeeping: Atomic synchronization ensures precise timekeeping.
• Solar Powered: No need for battery replacements.
• Water Resistance: Up to 200 meters, making it suitable for diving and swimming.
• Multi-Functionality: Includes alarms, stopwatch, and world time.

Cons

• Complex Interface: May require some time to get used to all the features.
• Size: The watch can be bulky and may not fit smaller wrists comfortably.
• Cost: Priced around $500-$600, which may be out of budget for some users.
• Maintenance: While solar-powered, occasional cleaning of the solar panel is necessary.

Customer Reviews

Customers praise the AWG-M510 for its robust build quality and accurate timekeeping. Many appreciate its solar power feature, which eliminates the need for frequent battery replacements. However, some users find the interface complex and the size too large for their wrists.

Common complaint 

Is the initial learning curve required to fully utilize all the features. Despite this, the overall consensus is that the Casio 5230 Watch G-Shock AWG-M510 is a reliable and versatile timepiece suitable for various activities.