Introduction
Thank you for choosing the TX T3C303 400 Series Perpetual Weekly Calendar Watch. This manual provides essential information for the proper setup, operation, and maintenance of your timepiece. Please read these instructions carefully to ensure optimal performance and longevity of your watch.
Product Overview
The TX T3C303 watch features a sophisticated design combined with advanced functionality. Key features include:
- Proprietary Six-Hand Movement: Equipped with four independent motors for precise function control.
- Perpetual Weekly Calendar: Automatically adjusts for day, month, and date, accurately displaying the week at a glance until the year 2100.
- Durable Construction: Features a solid stainless steel case and bracelet, with a virtually scratch-proof sapphire crystal.
- Enhanced Visibility: Super LumiNova indices provide clear readability in low light conditions.
- Water Resistance: Water resistant to 100 meters (330 feet), suitable for snorkeling and swimming.
- German Designed Quartz Movement: Ensures reliable and accurate timekeeping.

The image displays the TX T3C303 watch's retail packaging, featuring a black box, a branded watch cushion, and the included instruction manual.
Setup
Before initial use, ensure the watch is properly set to your local time and date.
Setting the Time
- Pull the crown out to the furthest position.
- Rotate the crown to move the hands clockwise until the correct time is displayed. Ensure AM/PM is correctly set if your watch has a 24-hour indicator.
- Push the crown back into its normal operating position.
Setting the Perpetual Weekly Calendar
The TX T3C303 features a perpetual calendar that automatically adjusts for day, month, and date. Once the correct time is set, the calendar functions will align automatically. No manual adjustment for odd/even months or leap years is required until the year 2100.
- Refer to your specific model's detailed instructions for any sub-dial adjustments if applicable.
- Ensure the time is set accurately, as the calendar relies on the main time setting for its perpetual function.
Operating Instructions
Your TX T3C303 watch is designed for straightforward operation once set.
Timekeeping
The watch continuously displays the current time. The proprietary six-hand movement ensures accurate timekeeping.
Reading the Weekly Calendar
The innovative weekly date window allows for the display of a complete seven-day span, providing a clear overview of the week's dates and corresponding days. Consult the watch face for the specific layout of the weekly calendar display.
Maintenance
Proper care will help maintain the appearance and function of your TX watch.
Cleaning
- Wipe the watch case and bracelet with a soft, dry cloth regularly to remove dust and smudges.
- For stainless steel, a slightly damp cloth can be used, followed by immediate drying.
- Avoid using harsh chemicals or abrasive materials, as these can damage the finish and sapphire crystal.
Water Resistance
Your watch is water resistant to 100 meters (330 feet). This makes it suitable for:
- Splashes and rain
- Showering
- Swimming
- Snorkeling
Important: It is not suitable for diving. Do not operate the crown or pushers while the watch is wet or submerged.
Battery Replacement
As a quartz movement watch, it is powered by a battery. When the watch stops or its functions become erratic, it may indicate a low battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and water resistance.
Troubleshooting
If you encounter issues with your TX T3C303 watch, consider the following common solutions:
- Watch Not Running: Check if the crown is pushed in completely. If it is, the battery may need replacement.
- Incorrect Time/Date: Refer to the "Setting the Time" and "Setting the Perpetual Weekly Calendar" sections to reset.
- Erratic Movement: This could indicate a low battery. Seek professional battery replacement.
For persistent issues, please contact customer support or a certified watch repair center.
Specifications
| Model Number | T3C303 |
| Case Diameter | 44 Millimetres |
| Band Material Type | Stainless Steel |
| Band Colour | Silver |
| Watch Movement Type | Quartz |
| Water Resistance | 100 meters (330 feet) |
| Crystal Type | Sapphire |
| Item Weight | 299.37 g (0.66 Pounds) |
| Product Dimensions | 0.99 x 0.99 x 0.99 cm |
| Manufacturer | TX |

This chart illustrates different watch case diameters, ranging from 14-16mm up to 50-54mm, to help visualize watch sizes. The TX T3C303 has a 44mm case diameter.
Warranty and Support
For warranty information, please contact the seller of record from whom you purchased this TX T3C303 watch. They will provide details regarding warranty coverage and service procedures.
For technical support or further assistance, please refer to the official TX brand website or contact their customer service department.