User manual CASIO NO 3357

[. . . ] MO0405-EA Operation Guide 3357 Getting Acquainted Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully and keep it on hand for later reference when necessary. Expose the watch to bright light to charge its battery before using it. You can use this watch even as its battery is being charged by exposure to bright light. [. . . ] The watch's auto light switch automatically illuminates the face when you angle the watch towards your face. · The auto light switch must be turned on (indicated by the auto light switch on indicator) for it to operate. · You can specify 1. 5 seconds or 3 seconds as the illumination duration. · See "Illumination Precautions" for other important information. Auto light switch on indicator Hourly Time Signal Screen To set the alarm time 1. Hold down A until the hour setting of the alarm time starts to flash, which indicates the setting screen. · When setting the alarm time using the 12-hour format, take care to set the time correctly as a. m. Press A to exit the setting screen. To illuminate the face of the watch manually In any mode (except when a setting screen is on the display), press B to illuminate the face of the watch. · The above operation turns on illumination regardless of the current auto light switch setting. About the Auto Light Switch Turning on the auto light switch causes the face to illuminate, whenever you position your wrist as described below in any mode. Note that this watch features a "Full Auto LED Light", so the auto light switch operates only when available light is below a certain level. Moving the watch to a position that is parallel to the ground and then tilting it towards you more than 40 degrees causes illumination to turn on. In the Timekeeping Mode, hold down A until the city code starts to flash, which indicates the setting screen. Press B to toggle the illumination duration setting between 3 seconds ( ) and 1. 5 seconds ( ). Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot. 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 ll Power Supply This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging. · The illustration shows how to position a watch with a resin band. · Note that charging efficiency drops when any part of the solar cell is blocked by clothing, etc. · Normally, you should try to keep the watch outside of your sleeve as much as possible. Charging is significantly reduced if the face is only partially covered. Solar cell Important!· 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 rechargeable battery power to run down. Make sure that the watch is normally exposed to bright light whenever possible. [. . . ] In the range of 00 to 29, the seconds are reset to 00 without changing the minutes. The day of the week is calculated automatically in accordance with the date. · The watch's built-in full automatic calendar makes allowances for different month lengths and leap years. Once you set the date, there should be no reason to change it except after you have the watch's battery replaced or when battery power drops to Level 4. [. . . ]