MO1610-EA - Casio Watch User Manual - Operation Guide 5229 5518

Oct 23, 2026

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Operation guide for Casio digital wristwatch models MO1610-EA, covering general navigation and core timekeeping functions. Instructions explain how to set the digital time and date using a selectable city code, including switching between Daylight Saving Time (DST) and Standard Time, and choosing 12-hour or 24-hour display formats. The manual also details Stopwatch, Countdown Timer, World Time, Alarms, and Illumination features, including setting and measurement procedures, with references to related tables such as the city code list.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages6

Reading Time15 min

AccessFree to download

General Guide

Timekeeping

To set the digital time and date

To change the Daylight Saving Time (summer time) setting

Stopwatch

Countdown Timer

World Time

Alarms

Illumination

Hand Home Position Correction

Reference

Specifications

MO1610-EA © 2016 CASIO COMPUTER CO., LTD. About This Manual • Depending on the model of your watch, digital display text appears either as dark figures on a light background or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background. • Button operations are indicated using the letters shown in the illustration. • Note that the product illustrations in this manual are intended for reference only, and so the actual product may appear somewhat different than depicted by an illustration. E-1 • Each section of this manual provides you with the information you need to perform Contents operations in each mode. Further details and technical information can be found in ~~ ~~the “Reference” section. General Guide ………………………………………………………………………… E-6 Timekeeping …………………………………………………………………………… E-8 To set the digital time and date ……………………………………………… E-9 To change the Daylight Saving Time (summer time) setting ………………E-12 Stopwatch ………………………………………………………………………………E-14 To specify a distance value ……………………………………………………E-16 To specify lap time or split time readings ……………………………………E-19 To perform elapsed time measurement………………………………………E-20 To set up the stopwatch to take lap time readings …………………………E-21 To perform a lap time measurement …………………………………………E-22 To set up the stopwatch to take split time readings…………………………E-23 To perform a split time measurement…………………………………………E-24 To measure times with the stopwatch ………………………………………E-25 E-2 E-3 Countdown Timer………………………………………………………………………E-26 To use the countdown timer……………………………………………………E-27 To configure countdown start time and auto-repeat settings ………………E-28 World Time………………………………………………………………………………E-30 To view the current time in another time zone ………………………………E-31 To toggle a city code time between Standard Time and Daylight Saving Time ………………………………………………………E-32 To swap your Home City and World Time City………………………………E-33 Alarms……………………………………………………………………………………E-34 To set an alarm time ……………………………………………………………E-35 To turn an alarm on and off ……………………………………………………E-37 To turn the Hourly Time Signal on and off……………………………………E-38 E-4 Illumination ……………………………………………………………………………E-39 To illuminate the face manually ………………………………………………E-39 To specify the illumination duration……………………………………………E-40 To turn the auto light switch on and off ………………………………………E-43 Hand Home Position Correction ……………………………………………………E-44 To adjust home positions ………………………………………………………E-44 Reference ………………………………………………………………………………E-46 Specifications …………………………………………………………………………E-50 E-5 General Guide • Press C to change from mode to mode. • In any mode (except a setting mode), press B to illuminate the face. Timekeeping Mode E-6 C C C E-7 To set the digital time and date PM indicator City code Seconds Hour : Minutes 1. In the Timekeeping Mode, hold down A for about three seconds until the currently selected city code flashes in the right digital dial. This is the setting mode. 2. Use D (east) and B (west) to display the city code you want to select. • Make sure you select your Home City code before changing any other setting. • For full information on city codes, see the “City Code Table” at the back of this manual. E-9 Operation Guide 5229 5518 3. Press C to change the flashing screen content in the sequence shown below to select the other settings. 4. When the setting you want to change is flashing, use D or B to change it as described below. | Screen: | To do this: | Do this: | | --- | --- | --- | | | Change the city code | Use D (east) and B (west) . | | | Toggle the DST setting between Daylight Saving Time (on) and Standard Time (OFF) . | Press D. | E-10 | Screen: | To do this: | Do this: | | --- | --- | --- | | | Toggle between 12-hour (12H) and 24-hour (24H) timekeeping | Press D. | | | Reset the seconds to 00 | Press D. | | | Change the hour and minute

FAQs

How do you set the digital time and date on the watch?

In the Timekeeping Mode, hold A for about three seconds until the selected city code flashes. Use D (east) and B (west) to choose the city code, then use C to cycle through items and D/B to change them as shown, and press A to exit.

What does Daylight Saving Time (DST) do, and how can you change it?

DST advances the time setting by one hour from Standard Time. In the Timekeeping Mode, hold A for about three seconds, press C to open the DST screen, toggle DST on (on) or off (OFF) with D, then press A to exit.

How does the 12-hour/24-hour timekeeping format work?

With 12-hour format, the PM indicator appears for times from noon to 11:59 p.m., and no indicator appears from midnight to 11:59 a.m. With 24-hour format, times are shown from 0:00 to 23:59 without a PM indicator, and the selected format applies to all other modes.

Oct 23, 2026

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