Module No. 5707

Charging

This watch runs on power supplied from a rechargeable (secondary) battery that is charged by a solar panel. The solar panel is integrated into the face of the watch, and power is generated whenever the face is exposed to light.

Charging the Watch

When you are not wearing the watch, put it in a location where it is exposed to bright light.

WAT_SOLAR_01

While you are wearing the watch, make sure that its face (solar panel) is not blocked from light by the sleeve of your clothing. Power generation efficiency is reduced even when the face of the watch is blocked only partially.

WAT_SOLAR_caps_02

Important!

Some light sources and environments can cause the watch to become extremely hot during charging, which creates the risk of burn injury and damage to internal watch components.
Avoid charging the watch under conditions like the ones described below, where the temperatures may exceed 60 °C (140 °F).

On the dashboard of a vehicle parked in the sun

Near incandescent lamps, camera lights, halogen lamps, or other sources of heat

In locations exposed to direct sunlight for long periods and other hot locations

Checking the Charge Level

In the Timekeeping Mode, the current charge level is indicated by the mode hand.

5707_08_Intro
  1. Good (high charge)

  2. Good (medium charge)

  3. Low Battery

Remaining Charge and Dead Battery

You can determine if the charge level is low by checking the hand movement. Functions become disabled as battery power goes low.

Important!

Should the battery go low or go dead, expose the face (solar panel) to light as soon as possible.

Note

Exposing the watch face to light after the battery goes dead will cause the [CHARGE] indicator to appear and the second hand to rotate counterclockwise until it stops at second 57. This indicates charging has started.

Low Battery Power

The second hand jumps at two-second intervals.

batt_hand_2sec_BK_N03

Dead Battery

All hands are stopped.

batt_all_hands_0sec_BK_N03

Charging Time Guidelines

The table below shows guidelines for approximate charging times.

Charging Times Required for 1 Day of Operation

Light Level (Lux)

Approximate Charging Time

50,000

8 minutes

10,000

30 minutes

5,000

48 minutes

500

8 hours

Charge Recovery Times

Sunny day, outdoors (50,000 lux)

Dead battery arrowR Medium charge

2 hours

Medium charge arrowR High charge

20 hours

High charge arrowR Full charge

6 hours

Sunny day, near a window (10,000 lux)

Dead battery arrowR Medium charge

6 hours

Medium charge arrowR High charge

76 hours

High charge arrowR Full charge

21 hours

Overcast day, near a window (5,000 lux)

Dead battery arrowR Medium charge

10 hours

Medium charge arrowR High charge

124 hours

High charge arrowR Full charge

33 hours

Indoor fluorescent lighting (500 lux)

Dead battery arrowR Medium charge

116 hours

Medium charge arrowR High charge

-

High charge arrowR Full charge

-

Note

Actual charging time depends on the charging environment, watch settings, and other factors.

Power Saving Function

Leaving the watch in a dark location for about one hour between the hours of 10 p.m. and 6 a.m. will cause the display to go blank, and the watch to enter Level 1 power saving. If the watch is left in this condition for six or seven days, the watch will enter Level 2 power saving.

Power Saving Level 1:

The second hand stops at 12 o’clock and the digital display goes blank to save power. The watch can connect with a phone at this level.

Power Saving Level 2:

All hands stop and the digital display goes blank to save power. All functions are disabled.

Recovering from Power Saving Operation

Use one of the operations below to exit power saving.

Press any button.

Move the watch to a bright location.

Trigger auto light by angling the watch towards your face.

Note

The watch will not enter power saving in the cases below.

Alarm Mode

Stopwatch Mode

Timer Mode

You can enable or disable Power Saving.

Note that the watch also may enter power saving if its face is blocked from light by your sleeve while you are wearing it.

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