Introduction
This manual provides detailed instructions for the proper use, setup, and maintenance of your Casio MTP-1374L-1A Men's Multifunction Watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Figure 1: Casio MTP-1374L-1A Men's Multifunction Watch. This image displays the watch face with its black dial, silver hour markers, and three sub-dials. The watch has a silver-tone case and a black leather strap with white stitching. The main hands are silver with luminous accents, and the second hand is red. The watch face indicates "CASIO WR 50M".
Setup
Initial Setup
Upon receiving your watch, you may need to set the current time, day, and date.
- Setting the Time: Pull the crown (the knob on the side of the watch case) out to the second click position. Rotate the crown to adjust the hour and minute hands to the correct time. Push the crown back in to the normal position to start timekeeping.
- Setting the Day and Date: Pull the crown out to the first click position. Use the 'A' button (typically located above the crown) to advance the day indicator and the 'B' button (typically located below the crown) to advance the date indicator. Once set, push the crown back in to the normal position.
Battery Installation/Replacement
The Casio MTP-1374L-1A watch uses one LR44 battery. When the watch stops or the display becomes dim, it indicates that the battery needs replacement. It is highly recommended to have the battery replaced by a qualified watch technician to ensure proper sealing and water resistance.
Operating the Watch
Timekeeping
The main hands display the current hour and minute. The red second hand indicates the seconds.
Multifunction Dials
Your watch features three sub-dials:
- Day Indicator: Displays the current day of the week (e.g., SU, MO, TU).
- Date Indicator: Shows the current day of the month (1-31).
- 24-Hour Indicator: Displays the current time in a 24-hour format, synchronized with the main timekeeping.
Water Resistance
The watch is marked "WR 50M", indicating water resistance up to 50 meters. This means the watch is suitable for everyday use and can withstand splashes, rain, and brief immersion in water. It is not recommended for swimming, diving, or prolonged water activities.
Maintenance
- Cleaning: Wipe the watch case and crystal regularly with a soft, dry cloth to remove dirt and smudges. For the leather strap, avoid excessive moisture and harsh chemicals.
- Strap Care: The leather strap may show signs of wear over time. Avoid prolonged exposure to direct sunlight, extreme temperatures, and moisture to preserve its condition.
- Battery Life and Replacement: The battery life typically lasts for several years. When the battery is low, the watch may stop or run erratically. Replace the battery promptly to prevent leakage and damage to the movement.
- Storage: When not in use for extended periods, store the watch in a cool, dry place away from direct sunlight and strong magnetic fields.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch not running | Depleted battery | Replace battery (professional service recommended) |
| Incorrect time/date | Settings not adjusted correctly | Refer to "Setting the Time" and "Setting the Day and Date" sections |
| Condensation inside crystal | Exposure to extreme temperature changes or water ingress | Consult a qualified watch technician immediately |
Specifications
- Model Number: MTP-1374L-1A
- Movement: Quartz
- Functions: Multifunction (Day, Date, 24-hour indicator)
- Case Material: Stainless Steel
- Case Dimensions: 1.85 x 1.73 x 0.39 inches (47mm x 44mm x 10mm approx.)
- Strap Material: Leather
- Dial Color: Black
- Water Resistance: 50 Meters (WR 50M)
- Battery Type: 1 LR44 (included)
- Weight: 2.33 ounces
Warranty Information
Casio watches typically come with a manufacturer's warranty covering defects in materials and workmanship. For specific warranty terms and duration, please refer to the warranty card included with your purchase or visit the official Casio website. Keep your proof of purchase for warranty claims.
Support
For further assistance, technical support, or service inquiries regarding your Casio MTP-1374L-1A watch, please visit the official Casio support website or contact their customer service department.
- Official Casio Website: www.casio.com
- Casio Store on Amazon: Visit the Casio Store





