Introduction
This instruction manual provides essential information for the original Diesel DZ5123 watch strap. Crafted from high-resistance genuine leather, this strap is designed to ensure durability and maintain the distinctive style of your Diesel watch. The strap features a 25mm lug width and comes with an original buckle and adornment. Please note that the watch shown in some images is for illustrative purposes only; this product is the strap itself.
Compatibility Check
Before installation, it is crucial to confirm the compatibility of this strap with your watch. The model number of your watch is typically located on the metal case back. Ensure that your watch model is DZ5123 to guarantee a proper fit.

Image: A Diesel DZ5123 watch with the silver leather strap installed. This image illustrates the strap's appearance when attached to the compatible watch model.
Installation Instructions
Installing a watch strap typically involves removing the old strap and attaching the new one using spring bars. If you are unfamiliar with this process, it is recommended to seek assistance from a professional watchmaker or jeweler to avoid damaging your watch or the new strap.
- Prepare Your Workspace: Work on a clean, soft surface to prevent scratches to your watch.
- Remove the Old Strap: Use a spring bar tool to compress the spring bar at one end of the old strap. Gently pull the strap away from the watch lug. Repeat for the other side.
- Insert New Spring Bars (if necessary): If your new strap did not come with spring bars, use the ones from your old strap or new ones of the correct size (25mm).
- Attach the New Strap: Insert one end of the spring bar into the lug hole on the watch. Use the spring bar tool to compress the other end of the spring bar, aligning it with the opposite lug hole. Release the tool, ensuring the spring bar clicks securely into place. Gently tug on the strap to confirm it is firmly attached.
- Repeat for the Second Half: Attach the other half of the strap following the same procedure.

Image: A detailed view of the original Diesel DZ5123 watch strap, highlighting its silver color, leather texture, and the integrated buckle. This image shows the strap components prior to installation.
Usage and Adjustment
Once installed, the Diesel DZ5123 watch strap is ready for use. The strap features a standard buckle closure for secure fastening. Adjust the strap to a comfortable fit on your wrist, ensuring it is neither too tight nor too loose. A proper fit allows for air circulation and prevents discomfort.
Care and Maintenance
To prolong the life and maintain the appearance of your genuine leather watch strap, follow these care guidelines:
- Avoid Water Exposure: Leather can be damaged by prolonged exposure to water. Remove your watch before swimming, showering, or engaging in activities where it might get wet.
- Clean Gently: Wipe the strap with a soft, dry cloth regularly to remove dirt and oils. For deeper cleaning, use a specialized leather cleaner and conditioner, following the product's instructions.
- Avoid Chemicals: Do not expose the strap to harsh chemicals, solvents, or perfumes, as these can stain or damage the leather.
- Store Properly: When not in use, store your watch in a cool, dry place away from direct sunlight and extreme temperatures.
- Allow to Breathe: Avoid storing the strap in airtight containers, as leather needs to breathe.
Troubleshooting
If you encounter any issues with your watch strap, consider the following:
- Strap Does Not Fit: Double-check your watch's model number on its case back to ensure it is indeed DZ5123. If the model number matches, ensure the spring bars are correctly seated in the lug holes.
- Discomfort or Irritation: Ensure the strap is not too tight. Leather straps may require a short break-in period to conform to your wrist. If irritation persists, consult a dermatologist.
- Signs of Wear: Leather is a natural material and will show signs of wear over time. Regular maintenance as described above can extend its life. If the strap is significantly damaged, consider replacement.
Product Specifications
| Model: | DZ5123 |
| Brand: | Diesel |
| Material: | 100% Genuine Leather (High Resistance) |
| Strap Width: | 25mm |
| Color: | Silver |
| Manufacturer: | Diesel |
| Country of Origin: | Brazil |
| Package Dimensions: | 16 x 11 x 6.5 cm; 300 g |
Warranty Information
This original Diesel watch strap comes with a factory warranty. For specific details regarding the warranty period, coverage, and claims process, please refer to the documentation provided with your purchase or contact the authorized retailer where the product was acquired. Keep your proof of purchase for warranty purposes.
Customer Support
For further assistance, technical support, or inquiries regarding your Diesel DZ5123 watch strap, please contact the authorized retailer or specialized assistance service from whom you purchased the product. The retailer "MeuRelogioNovo" is mentioned as a seller for this product and may provide support.
For general information about Diesel products, you may visit the official Diesel website.
