Key facts
- Manuals
- 1,706
- Models
- 355
- Categories
- 16
- Languages
- EN · ZH · ES · IT
- Last added
- 2026-10-03
Casio models by category
Featured Casio manuals
Casio 5612/5613 Digital Watch Operation Guide
The Operation Guide provides step‑by‑step instructions for all functions of the Casio 5612 and 5613 digital watches, including timekeeping, alarms, stopwatch, countdown timer, world time and illumination. Each mode is described with button sequences and settings adjustments.
The manual also covers general guidance such as illumination settings, daylight‑saving time, home‑position correction, operating precautions and user maintenance. Reference tables for city codes and specifications are included at the back of the guide.
Covers: General Guide · Timekeeping Mode · Alarm Mode · Countdown Timer Mode · World Time Mode · Stopwatch Mode
Casio 5081 Watch Operation Guide
This operation guide walks you through all functions of the Casio 5081 digital watch. It covers basic time‑keeping, alarm setup, stopwatch with distance‑based speed calculation, countdown timer, world‑time city selection, illumination settings, and manual hand‑position correction.
Each mode is described with step‑by‑step button sequences, illustrated button letters, and tips for safe use such as auto‑light switch handling and magnet‑impact correction. The reference section provides city‑code tables and technical details for advanced configuration.
Covers: Getting Acquainted · Timekeeping Mode · Stopwatch Mode · Countdown Timer Mode · World Time Mode · Alarm Mode
Casio 5570 Watch Operation Guide
This manual covers the Casio 5570 watch, a digital‑analog timepiece with six operating modes: Timekeeping, World Time, Countdown Timer, Stopwatch, Alarm, and Hand Setting. It provides step‑by‑step instructions for selecting modes, configuring home city and daylight‑saving settings, and adjusting digital and analog time displays.
Additional sections include troubleshooting tips, technical specifications, operating precautions, and user maintenance advice to help keep the watch functioning reliably over its service life.
Covers: About This Manual · Things to check before using the watch · Mode Reference Guide · Configuring Home City Settings · Adjusting the Digital Time and Date Settings · World Time Mode
Casio Solar Wave Watch User Manual
This manual explains how to use and maintain the Casio solar wave watch. It covers safety warnings, button functions, crown operation, and the procedures for setting world‑time zones, receiving radio‑time signals, and charging the solar cell.
The guide also details water‑resistance ratings, anti‑magnetic features, battery‑exhaust warnings, and troubleshooting steps for signal reception problems or abnormal watch movement. This manual is written in Chinese.
Covers: About This Product · Before Use · World Time Function · Radio‑Signal Time Calibration · Solar Charging Function · Water‑Resistance
Latest Casio manuals
Casio 5612/5613 Digital Watch Operation Guide
User Manual 8 pages · 529 KB · ENThis Casio operation guide explains how to set time, use alarms, stopwatch, countdown timer, world time and illumination on the 5612/5613 digital watch.
Casio 5081 Watch Operation Guide
User Manual 4 pages · 653 KB · ENThe Casio 5081 watch operation guide explains how to set time, alarms, stopwatch, countdown timer, world time, illumination, and hand correction.
Casio 5570 Watch Operation Guide
User Manual 7 pages · 281 KB · ENThe Casio 5570 watch operation guide explains how to use timekeeping, world time, alarm, stopwatch, countdown timer, and hand‑setting functions.
Casio Solar Wave Watch User Manual
User Manual 17 pages · 2.1 MB · ZHCasio solar‑powered radio‑controlled watch manual with instructions for operation, charging, world‑time, and maintenance.
Casio CTK-4400/WK-240/WK-245 Digital Keyboard User Manual
User Manual 76 pages · 3.2 MB · ESThe Casio CTK-4400/WK-240/WK-245 user manual provides setup, operation, safety, and specifications for the digital keyboard.
Casio PX‑S1100 Digital Piano User Guide
User Manual 61 pages · 5.9 MB · ENThe Casio PX‑S1100 user guide explains setup, operation, and features of the digital piano.
Casio fx-95ES PLUS, fx-85ES PLUS, fx-82ES PLUS, fx-350ES PLUS Scientific Calculator User Guide
User Manual 65 pages · 1.2 MB · ENThe guide explains how to set up, operate, and maintain Casio's fx‑95ES PLUS, fx‑85ES PLUS, fx‑82ES PLUS, and fx‑350ES PLUS scientific calculators.
Casio GBD-200 User Manual
User Manual 36 pages · 1.4 MB · ITThe Casio GBD-200 user manual provides operating instructions, safety precautions, battery replacement guidance, and mobile link setup.
Casio fx-85GT X fx-83GT X User Guide
User Manual 108 pages · 2.6 MB · ENThe Casio fx-85GT X and fx-83GT X user guide provides instructions for setup, calculations, functions, and maintenance.
Casio 4330 1MO0602-EA Watch Operation Guide
User Manual 4 pages · 1.4 MB · ENThis operation guide explains how to use and maintain the Casio 4330 1MO0602‑EA solar‑powered watch, covering timekeeping, world time, alarm, stopwatch…
Casio CTK-3500 Digital Keyboard User Manual
User Manual 40 pages · 1.9 MB · ENThe Casio CTK-3500 digital keyboard user manual provides safety precautions, setup instructions, and detailed operation guides for all functions.
Casio fx-82AU PLUS II Scientific Calculator User Guide
User Manual 57 pages · 1.1 MB · ENThe guide explains how to set up, operate, and maintain the Casio fx-82AU PLUS II scientific calculator.
Casio 5663 Watch User Manual
User Manual 16 pages · 663 KB · ENThe Casio 5663 watch user manual provides operating instructions, maintenance tips, battery replacement steps, and feature settings.
Casio H149 Solar Watch Simple Operation Manual
User Manual 3 pages · 365 KB · ZHThe Casio H149 solar watch simple operation manual provides step‑by‑step instructions for charging, signal reception, world time, daylight saving, and…
Casio G‑SHOCK MOVE 3475 User Manual
User Manual 58 pages · 4.8 MB · ZHThe Casio G‑SHOCK MOVE 3475 user manual explains how to set up, charge, and use the watch’s GPS, heart‑rate, and activity features.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Quick Start Guide
The shortest path to a working setup, usually only a few pages.
Questions answered in Casio manuals
How can I turn on the watch illumination?
Press B in any mode to manually illuminate the face, or enable the auto light switch for automatic illumination when the watch is angled toward your face.
How can I turn on the display illumination manually?
Press B in any mode; the display will light for the duration set (1.5 s or 3 s).
When traveling from Japan to another country, will the watch automatically change to the local time?
No, the watch will not automatically change; you must manually select the new time zone.
What happens if the watch is set to a time zone outside the radio‑signal coverage area?
The watch functions as a regular quartz watch with an average monthly deviation of ±15 seconds.
How do I reset the keyboard to factory defaults?
Turn off the keyboard, then hold down the SONG BANK button and the [1] key on the 10‑key pad while pressing 1; release when the “Pls wait” message appears.
From: Casio CTK-4400/WK-240/WK-245 Digital Keyboard User Manual
What batteries does the CTK‑4400 use?
The CTK‑4400 uses six AA‑size zinc‑carbon or alkaline batteries.
From: Casio CTK-4400/WK-240/WK-245 Digital Keyboard User Manual