Introduction
This manual provides essential instructions for the proper use, care, and maintenance of your Luminox Navy Seal XS.3603 dive watch. Designed for durability and precision, this timepiece features a 45mm CARBONOX™ case, sapphire glass, and 200-meter water resistance, making it suitable for diving and demanding environments. Please read this manual thoroughly to ensure optimal performance and longevity of your watch.
Key Features
- Case: 45mm CARBONOX™ case, black finish.
- Crystal: Sapphire glass with anti-reflective coating and magnifying loupe over the date window.
- Water Resistance: 200 meters (660 feet / 20 ATM), suitable for professional marine activity and serious surface water sports, but not saturation diving.
- Bezel: Unidirectional rotating dive bezel.
- Movement: Swiss Quartz movement.
- Illumination: Luminox Light Technology (LLT) for constant visibility for up to 25 years, featuring green and orange micro gas light sources on the dial ring, second, minute, and hour hands.
- Crown: Protected crown.
- Case Back: Stainless steel screw-in case back.
- Band: Orange rubber band.
- Dial: Blue dial with date function.
Setup
1. Unpacking and Initial Inspection
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.

The Luminox Navy Seal XS.3603 watch is securely packaged in a durable case, accompanied by its instruction manual and warranty information.

The watch case opened, revealing the watch nestled in foam padding, with the international warranty card visible.
2. Adjusting the Strap
The orange rubber strap is adjustable to fit various wrist sizes. Use the buckle to secure the watch comfortably on your wrist. Ensure it is snug but not overly tight to allow for proper circulation.

A user is shown adjusting the watch strap on their wrist, demonstrating how to achieve a comfortable fit.
Operating Instructions
1. Setting Time and Date
- Unscrew the Crown: Gently unscrew the crown counter-clockwise until it is free from the case.
- Position 2 (Date Setting): Pull the crown out to the first click position. Turn the crown clockwise or counter-clockwise to set the date. Avoid setting the date between 9 PM and 3 AM to prevent damage to the movement.
- Position 3 (Time Setting): Pull the crown out to the second click position. Turn the crown to set the hour and minute hands. Ensure the AM/PM is correctly set (the date will change at midnight).
- Secure the Crown: Once time and date are set, push the crown back into the normal position and screw it clockwise firmly against the case to ensure water resistance.

A detailed view of the watch face highlights the date window with its magnifying loupe and the protected crown on the side.
2. Using the Unidirectional Rotating Bezel
The bezel rotates only counter-clockwise. This feature is used to measure elapsed time, particularly for diving. Align the zero marker on the bezel with the minute hand at the start of an event. The minute hand will then indicate the elapsed time on the bezel scale.

The watch is displayed at an angle, showcasing its blue dial, orange strap, and the markings on the unidirectional rotating bezel.
3. Luminox Light Technology (LLT)
Your Luminox watch features a self-powered illumination system that provides constant glow for up to 25 years. This technology does not require external light exposure or battery power for illumination. The green and orange micro gas light sources ensure visibility in all lighting conditions.

The watch is shown in low light, demonstrating the bright, self-powered Luminox Light Technology on its hands and hour markers.
Maintenance
1. Cleaning Your Watch
To clean your watch, use a soft, damp cloth. For rubber straps, mild soap and water can be used. Rinse thoroughly with fresh water after exposure to saltwater or chlorine. Avoid using harsh chemicals or abrasive materials, which can damage the watch's finish or seals.
2. Water Resistance
The Luminox Navy Seal XS.3603 is water-resistant to 200 meters (20 ATM). This rating means it is suitable for swimming, snorkeling, and recreational diving. However, it is not designed for saturation diving. Always ensure the crown is fully screwed down before exposing the watch to water. Avoid operating the crown or pushers (if present on other models) while the watch is wet or submerged.
3. Battery Replacement
The watch is powered by a Lithium Metal battery. When the battery needs replacement, it is recommended to have this service performed by an authorized Luminox service center or a qualified watchmaker. This ensures proper sealing and maintains the watch's water resistance and warranty.
4. Storage
When not wearing your watch, store it in a cool, dry place away from direct sunlight and extreme temperatures. The original watch case provides excellent protection.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch stops or runs intermittently. | Depleted battery. | Replace battery at an authorized service center. |
| Date does not change at midnight. | AM/PM setting is incorrect. | Adjust the time by advancing the hour hand past 12 o'clock until the date changes, then set the correct time. |
| Water inside the watch or fogging under crystal. | Crown not fully screwed down, or seals compromised. | Immediately take the watch to an authorized service center for inspection and repair to prevent further damage. |
| Bezel is difficult to rotate. | Dirt or debris lodged under the bezel. | Rinse the watch under fresh running water and try rotating the bezel. If the issue persists, seek professional service. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | XS.3603 |
| Case Diameter | 45 mm |
| Case Material | CARBONOX™ |
| Case Thickness | 14 mm |
| Crystal Material | Sapphire with anti-reflective coating |
| Movement Type | Swiss Quartz |
| Water Resistance | 200 meters (660 feet / 20 ATM) |
| Band Material | Rubber (Orange) |
| Band Width | 24 mm |
| Band Length | 210 mm |
| Illumination | Luminox Light Technology (LLT) |
| Weight | 75 Grams |
| Battery Type | Lithium Metal |
Warranty and Support
Your Luminox Navy Seal XS.3603 watch comes with a 2-Year Manufacturer's Warranty. This warranty covers manufacturing defects under normal use. For warranty claims, repairs, or technical support, please contact an authorized Luminox dealer or visit the official Luminox website.
For detailed warranty information and to locate an authorized service center, please visit: www.luminox.com/warranty
Always ensure that any service or repair is performed by an authorized professional to maintain the integrity of your watch and its water resistance.