Introduction
The Nubeo Cassini Space Invaders Automatic Watch NB-6103 is a timepiece designed with inspiration from space and sea exploration. This limited edition watch features a robust construction and a reliable Japanese automatic movement, offering both functionality and a distinctive design.

Image: Front view of the Nubeo Cassini Space Invaders watch, highlighting the dial and hands.

Image: The Nubeo Cassini Space Invaders watch worn on a wrist, showing its size and fit.

Image: Close-up of the watch's case back, featuring the Space Invaders logo and engraved specifications.
This manual provides essential information for the proper setup, operation, and maintenance of your Nubeo Cassini Space Invaders watch.
Initial Setup
Unpacking
Carefully remove the watch from its packaging. Inspect the watch for any visible damage. Ensure all protective films are removed from the crystal and case back.

Image: The Nubeo Cassini Space Invaders watch presented within its display box.
Winding the Watch
Your Nubeo Cassini watch is equipped with a Japanese TMI NH35 automatic movement. This movement is self-winding, meaning it gains power from the motion of your wrist. If the watch has stopped or is low on power, it can be manually wound:
- Unscrew the crown (if applicable) and pull it out to position 1 (first click).
- Rotate the crown clockwise approximately 20-30 times. This will provide sufficient power to start the watch.
- Push the crown back in and screw it down to ensure water resistance.
For optimal performance, wear the watch regularly. If worn daily, manual winding is typically not required.
Setting the Time and Date
To set the time and date:
- Unscrew the crown (if applicable) and pull it out to position 2 (second click) for date adjustment. Rotate the crown to set the correct date. Avoid setting the date between 9 PM and 3 AM, as this can damage the movement.
- Pull the crown out to position 3 (third click) for time adjustment. The second hand will stop. Rotate the crown to set the correct time. To ensure accuracy, synchronize with a reliable time source.
- Once the time and date are set, push the crown back in and screw it down firmly to maintain water resistance.
Operating Your Watch
Automatic Movement
The Japanese TMI NH35 automatic movement in your Nubeo Cassini watch is designed to operate without a battery. It is powered by the natural motion of your arm. When fully wound, the watch has a power reserve that allows it to continue running for a period even when not worn. Regular wear ensures continuous operation.
Daily Wear
Wear your watch comfortably on your wrist. The silicone strap is designed for durability and comfort. Ensure the clasp is securely fastened to prevent accidental loss.
Care and Maintenance
Water Resistance Guidelines
Your Nubeo Cassini watch has a water resistance rating of 5 ATM (50 meters). This means it is suitable for everyday use and can withstand splashes, rain, and brief immersion in water. However, it is important to observe the following:
- Avoid prolonged water exposure.
- Do not use in hot water or while showering. Hot water and steam can compromise the watch's seals.
- Not suitable for high-velocity water activities such as diving, snorkeling, or jet skiing.
- Ensure the crown is always fully pushed in and screwed down (if applicable) before any contact with water.
Cleaning
To clean your watch, wipe the case and strap with a soft, damp cloth. For the silicone strap, mild soap and water can be used. Avoid harsh chemicals or abrasive materials that could damage the finish.
Storage
When not wearing your watch, store it in a cool, dry place away from direct sunlight and extreme temperatures. The original watch box provides suitable protection.
Avoiding Magnetic Fields
Automatic watches can be affected by strong magnetic fields, which may cause them to run inaccurately. Keep your watch away from strong magnets found in speakers, refrigerators, and certain electronic devices.

Image: The Nubeo Cassini Space Invaders watch displaying its luminous hands and markers in low light conditions.
Troubleshooting
If you encounter issues with your Nubeo Cassini watch, consider the following common solutions:
- Watch Not Running: If the watch has stopped, it may need to be manually wound. Follow the 'Winding the Watch' instructions in the Initial Setup section. Ensure it is worn regularly to maintain power.
- Inaccurate Time: Check if the watch has been exposed to strong magnetic fields. If so, demagnetization by a professional watchmaker may be required. Ensure the crown is fully pushed in and screwed down.
- Date Not Changing: Verify that the time is set correctly, especially distinguishing between AM and PM. The date typically changes around midnight. Avoid setting the date between 9 PM and 3 AM.
For persistent issues, please refer to the Warranty and Customer Support section.
Product Specifications
| Model Number | NB-6103-07 |
| Movement | Japanese TMI NH35 Automatic, 24 Jewels, 3 Hands Date |
| Case Material | Stainless Steel |
| Case Diameter | 50mm |
| Lens | Anti-Reflection Coated Sapphire Lens |
| Bezel | Fixed Bezel |
| Crown | Pull Out |
| Strap Material | 24mm Silicone Strap with Strap Buckle |
| Water Resistance | 5 ATM (50 meters) |
| Package Dimensions | 5.98 x 4.92 x 4.65 inches |
| Item Weight | 5.29 ounces |
Warranty and Customer Support
Warranty Information
Your Nubeo Cassini Space Invaders watch comes with a 2-year International Warranty. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
Customer Support
For any questions, technical assistance, or warranty service, please contact Nubeo customer support through the retailer where the watch was purchased or visit the official Nubeo website for contact details. Provide your model number (NB-6103-07) and purchase information when seeking support.





