1. Introduction
Thank you for choosing the Pagani Design PD-1645 Automatic Watch. This manual provides essential information for the proper setup, operation, and maintenance of your timepiece. Please read it carefully to ensure optimal performance and longevity of your watch.
The Pagani Design PD-1645 features a sophisticated design with durable materials, including a 42mm stainless steel case, a 316L stainless steel bracelet, and a scratch-resistant sapphire glass crystal. It is powered by a reliable Japan NH35A automatic movement and offers 100 meters of water resistance.

Image 1.1: Front view of the Pagani Design PD-1645 Automatic Watch.
2. Setup
2.1 Initial Winding
Your Pagani Design PD-1645 watch is equipped with an automatic mechanical movement. If the watch has stopped or has not been worn for an extended period, it requires initial winding. To wind the watch, rotate the crown clockwise approximately 25 times. This will provide sufficient power reserve to start the movement.
2.2 Setting Time and Date
- Unscrew the Crown: Gently unscrew the crown counter-clockwise until it is free from the case.
- Set the Date: Pull the crown out to the first click position. Rotate the crown clockwise or counter-clockwise to adjust the date. Avoid setting the date between 9 PM and 3 AM, as this can damage the movement.
- Set the Time: Pull the crown out to the second click position. Rotate the crown to set the hour and minute hands. Ensure the AM/PM is correctly set by observing the date change at midnight.
- Secure the Crown: Once the time and date are set, push the crown back into the case and screw it clockwise until it is firmly secured. This ensures water resistance.
2.3 Bracelet Adjustment
The watch features a stainless steel bracelet with a folding safety clasp for a secure and comfortable fit. If the bracelet requires adjustment (e.g., removing or adding links), it is recommended to consult a professional watchmaker to avoid damage to the bracelet or clasp mechanism.

Image 2.1: Close-up view of the folding safety clasp.
3. Operating Instructions
3.1 Automatic Movement
The Pagani Design PD-1645 is powered by a Japan NH35A automatic movement. This movement is self-winding, meaning it harnesses the natural motion of your wrist to generate kinetic energy. When worn regularly, the watch will maintain its power reserve without the need for manual winding. If the watch is not worn for an extended period, it may stop and require manual winding as described in Section 2.1.
3.2 Luminous Dial
The watch dial features a luminous coating on the hands and hour markers. This allows for clear time visibility in low-light conditions or darkness after exposure to light.

Image 3.1: The luminous dial provides visibility in low light.
3.3 Product Overview Video
For a visual guide on the features and operation of the Pagani Design PD-1645 watch, please watch the official product video below.
Video 3.1: Official product video showcasing the Pagani Design PD-1645 watch.
4. Maintenance
4.1 Water Resistance
Your watch is water-resistant to 100 meters (330 feet). This means it can withstand daily water activities such as hand washing, car washing, and exposure to rain. However, it is crucial to ensure the crown is always fully screwed down to maintain water resistance. Do not operate the crown or push buttons while the watch is submerged in water. Avoid exposing the watch to hot water or steam, as this can compromise the seals.

Image 4.1: The Pagani Design PD-1645 is water-resistant up to 100 meters.
4.2 Cleaning
To maintain the appearance of your watch, wipe it regularly with a soft, dry cloth. For more thorough cleaning, use the provided Pagani watch cloth. For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying. Avoid using harsh chemicals or abrasive materials.
4.3 General Care
- Avoid exposing the watch to extreme temperatures (hot or cold) or sudden temperature changes.
- Keep the watch away from strong magnetic fields, as these can affect the accuracy of the mechanical movement.
- Protect the watch from strong impacts or shocks.
5. Specifications
The following table details the key specifications of the Pagani Design PD-1645 Automatic Watch:
| Feature | Specification |
|---|---|
| Model Number | PD-1645 |
| Movement | Japan NH35A Automatic |
| Case Material | 316L Stainless Steel |
| Case Diameter | 42mm |
| Case Thickness | 12mm |
| Bracelet Material | 316L Stainless Steel |
| Bracelet Length | 220mm |
| Bracelet Width | 20mm |
| Dial Window Material | Synthetic Sapphire Glass |
| Water Resistance | 100M (330ft) |
| Clasp Type | Folding Safety Clasp |
| Weight | 140g |

Image 5.1: Detailed dimensions and specifications of the PD-1645.

Image 5.2: The Japan NH35A automatic movement.

Image 5.3: The synthetic sapphire glass crystal.
6. Troubleshooting
6.1 Watch Not Running
- If the watch has stopped, it may have run out of power reserve. Manually wind the watch by rotating the crown clockwise approximately 25 times (refer to Section 2.1).
- Ensure the watch is worn regularly to keep the automatic movement powered.
6.2 Date Not Changing
- Check if the time is set correctly for AM/PM. The date typically changes around midnight.
- Avoid setting the date between 9 PM and 3 AM to prevent damage to the date mechanism.
6.3 Water Inside the Watch
If you notice any condensation or water inside the watch, immediately take it to a professional watchmaker for inspection and repair. Do not attempt to open the watch yourself, as this will void the warranty.
7. Warranty and Support
7.1 Warranty Information
Your Pagani Design PD-1645 watch comes with a 12-month high-quality guarantee from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage resulting from improper handling, accidents, unauthorized repairs, or normal wear and tear.
Additionally, we offer a 30-day no-reason return policy. Please refer to your purchase documentation for specific terms and conditions regarding returns.
7.2 Customer Support
For any questions, concerns, or warranty claims, please contact the seller or Pagani Design customer support through the platform where the watch was purchased. Please have your purchase details and model number (PD-1645) ready when contacting support.
Each watch package includes a detailed instruction manual and a Pagani watch cloth for your convenience.




