1. Introduction
The Tissot PRX Swiss Automatic Watch, Model T1374071104100, is a distinguished timepiece featuring a blue dial and a robust stainless steel case. This manual provides comprehensive instructions to ensure proper handling, setup, and maintenance of your watch.

Image 1.1: Front view of the Tissot PRX Swiss Automatic Watch with its distinctive blue dial and integrated stainless steel bracelet.
2. Setup
2.1 Setting the Time and Date
To set the time and date on your Tissot PRX automatic watch, follow these steps using the crown located on the side of the watch case:
- Pull the crown out to the first position: This position allows you to adjust the date. Rotate the crown clockwise or counter-clockwise until the desired date is displayed.
- Pull the crown out to the second position: This position allows you to adjust the time. Rotate the crown to move the hour and minute hands until the correct time is set. Ensure to account for AM/PM if the watch has a 24-hour indicator or if you are setting the date.
- Push the crown back in: Once the time and date are set, push the crown fully back into its original position to engage the movement and ensure water resistance.

Image 2.1: Side view of the Tissot PRX watch, highlighting the crown used for time and date adjustments.
2.2 Video Guide: Setting Time and Date
Video 2.2: A product demonstration video showing how to adjust the date and time on the Tissot PRX Powermatic 80 watch, along with a demonstration of the butterfly clasp.
3. Operating the Automatic Movement
Your Tissot PRX watch is equipped with a Swiss automatic movement, specifically the Powermatic 80. This movement is self-winding, meaning it harnesses the motion of your wrist to power the watch. It does not require a battery.
- Power Reserve: The Powermatic 80 movement offers an impressive power reserve of up to 80 hours when fully wound. This allows the watch to continue running for an extended period even when not worn.
- Winding: If the watch has stopped, you can manually wind it by rotating the crown clockwise in its original, pushed-in position. A few turns will provide enough power to start the movement.

Image 3.1: The transparent case back of the Tissot PRX watch, revealing the intricate automatic movement.
4. Bracelet Adjustment and Clasp
The Tissot PRX features an integrated stainless steel bracelet with a butterfly clasp and push-button release for secure and comfortable wear. The bracelet is designed to be interchangeable.
- Clasp Operation: To open the clasp, press the two push-buttons on the sides simultaneously. To close, simply fold the two parts of the clasp together until they click securely.
- Bracelet Sizing: The bracelet can be adjusted by adding or removing links to achieve a perfect fit. It is recommended to have this procedure performed by a qualified watchmaker to prevent damage.

Image 4.1: Detailed view of the Tissot PRX stainless steel bracelet and its butterfly clasp.
5. Maintenance and Care
Proper care will ensure the longevity and performance of your Tissot PRX watch.
- Cleaning: Regularly clean your watch with a soft, dry cloth. For the stainless steel case and bracelet, a slightly damp cloth can be used, followed by thorough drying. Avoid using harsh chemicals or abrasive materials.
- Water Resistance: This watch is water-resistant up to a pressure of 10 bar (100 meters / 330 feet). It is suitable for short periods of recreational swimming and showering. However, it is not recommended for diving or snorkeling. Always ensure the crown is fully pushed in to maintain water resistance.
- Avoid Shocks and Extreme Temperatures: Protect your watch from strong impacts and sudden changes in temperature, as these can affect the movement's accuracy and overall integrity.
- Magnetic Fields: Keep your watch away from strong magnetic fields (e.g., speakers, refrigerators, certain electronic devices) as they can interfere with the watch's movement.
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | Tissot PRX |
| Model Number | T1374071104100 |
| Case Material | 316L Stainless Steel |
| Case Diameter | 40 mm |
| Case Thickness | 10.93 mm |
| Dial Color | Blue |
| Crystal | Sapphire Crystal |
| Movement Type | Swiss Automatic (Powermatic 80) |
| Power Reserve | 80 Hours |
| Band Material | Stainless Steel |
| Band Width | 12 mm (tapers from 23mm at lugs) |
| Clasp Type | Butterfly Clasp with Push-Buttons |
| Water Resistance | 10 bar (100 m / 330 ft) |
| Functions | Date, Hour, Minute, Second |
| Item Weight | 138 Grams |
7. Warranty Information
Your Tissot PRX Swiss Automatic Watch is covered by a manufacturer's warranty. The manufacturer provides a 3-year warranty for this product. Please refer to the official Tissot warranty documentation included with your purchase for full terms and conditions.
8. Support
For further assistance, service, or inquiries regarding your Tissot PRX watch, please visit the official Tissot store or contact their customer support. You can find more information and support resources on the Tissot Store on Amazon.