Luminox XS.3603

Download PDFFree PDF. The Save button below keeps a bookmark and private notes in your account.

Luminox Navy Seal XS.3603 Dive Watch User Manual

Model: XS.3603 | Brand: Luminox

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.

Luminox Navy Seal XS.3603 watch in its protective case with instruction manual

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

Open Luminox watch case with warranty card

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.

Person adjusting the Luminox Navy Seal XS.3603 watch on their wrist

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

  1. Unscrew the Crown: Gently unscrew the crown counter-clockwise until it is free from the case.
  2. 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.
  3. 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).
  4. 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.
Close-up of Luminox Navy Seal XS.3603 watch face showing date window and crown

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.

Luminox Navy Seal XS.3603 watch with its blue dial and orange strap, highlighting the rotating bezel

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.

Luminox Navy Seal XS.3603 watch displaying its constant glow illumination in the dark

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

ProblemPossible CauseSolution
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

FeatureDetail
Model NumberXS.3603
Case Diameter45 mm
Case MaterialCARBONOX™
Case Thickness14 mm
Crystal MaterialSapphire with anti-reflective coating
Movement TypeSwiss Quartz
Water Resistance200 meters (660 feet / 20 ATM)
Band MaterialRubber (Orange)
Band Width24 mm
Band Length210 mm
IlluminationLuminox Light Technology (LLT)
Weight75 Grams
Battery TypeLithium 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.

© 2026 Luminox. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

After a successful submission, we securely hash the supplied account or form email before sending it to Microsoft Advertising for conversion attribution. Privacy details.