Operation Guide 5242
Contents |
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E-2 About This Manual
E-3 Using the Crown
E-6 Things to check before using the watch E-11 Charging the Watch
E-16 Radio Controlled Atomic Timekeeping
E-23 Mode Reference Guide
E-31 Configuring Current Time and Date Settings Manually
E-35 Taking Direction Readings
E-42 Taking Altitude Readings
E-51 Taking a barometric pressure reading
E-58 Taking Temperature Readings
E-62 Specifying Altitude, Barometric Pressure, and Temperature Units
E-63 Using the Alarm
E-65 Using the Stopwatch
E-66 Adjusting Home Positions
E-69 Illumination
E-73 Troubleshooting
E-80 Specifications
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
Charging Guide
Whenever you are not wearing the |
| When wearing the watch, make sure |
watch, be sure to leave it in a |
| that its face is not blocked from light |
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location where it is exposed to light. |
| by the sleeve of your clothing. |
• Best charging performance is |
| • The watch may enter a sleep state |
achieved by exposing the watch to |
| (page |
light that is as strong as possible. |
| by your sleeve even only partially. |
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Warning!
Leaving the watch in bright light for charging can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods.
•On the dashboard of a car parked in direct sunlight
•Too close to an incandescent lamp
•Under direct sunlight
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Important!
•Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps to ensure that power does not run down.
•Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to bright light whenever possible.
Power Levels
You can get an idea of the watch’s power level by observing the movement of the c Second Hand in the Timekeeping Mode.
•If the c Second Hand is moving smoothly at
power is at Level 1.
• If the c Second Hand is jumping at
| Level 2, which is quite low. Expose the watch to light as soon as |
30 | possible so it can charge (Low battery alert). |
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Jumps at
Level | Hand Movement |
| Function Status | |
1 | Normal. |
| All functions enabled | |
2 | c Second Hand jumps at | Illumination, beeper, sensors, time calibration signal | ||
b Day indicator changes to | 1 at the time of normal | |||
reception, home position adjustment all disabled. | ||||
| date changing. |
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3 | All hands stop at 12 o’clock. |
| All functions disabled | |
b Day indicator changes to | 1. | |||
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•When power drops to Level 3, all functions will be disabled but the watch will continue to keep time internally for about one week. If you recharge the battery sufficiently during this period, the hands will move automatically to the correct setting and regular timekeeping will resume. After one week, all settings (including timekeeping) will be cleared. Recharging the battery will reset all settings to their initial factory defaults.
Power Recovery Mode
The watch is designed to go into a power recovery mode that temporarily disables functions whenever power suddenly drops below a certain level due to overuse of sensors, illumination, and/or the alarm tone over a short period. All watch operations are disabled in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal operation after power recovers (in about 15 minutes). Putting the watch in a location where it is exposed to light will help power to recover sooner.
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Charging Times
| Daily |
| Level Change *2 |
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Exposure Level (Brightness) | Level 3 | Level 2 | Level 1 | |||
Operation *1 | ||||||
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Outdoor sunlight (50,000 lux) | 8 minutes |
| 3 hours | 31 hours | ||
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving.
•There actually are two sleep state levels: “second hand sleep” and “function sleep”.
Elapsed Time in Dark | Operation |
Window sunlight (10,000 lux) | 30 minutes | 7 hours | 113 hours |
Window sunlight on cloudy day (5,000 lux) | 48 minutes | 11 hours | 184 hours |
60 to 70 minutes (second hand sleep)
• c Second Hand stopped at 12 o’clock.
• All other functions enabled.
• All functions, including timekeeping, disabled.
Indoor fluorescent lighting (500 lux) | 8 hours | 115 hours | – – – |
*1 Approximate exposure each day to generate power for normal daily operation. *2 Approximate exposure to take power up one level.
•The above times are for reference only. Actual times depend on lighting conditions.
•For details about the operating time and daily operating conditions, see the “Power Supply” section of the Specifications (page
6 or 7 days (function sleep)• All hands stopped at 12 o’clock.
• Only the b Day Indicator operates normally.
•The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep state.
•The watch will not enter a sleep state while it is in the Stopwatch Mode.
To recover from the sleep state
Move the watch to a