Luminox Master Carbon Seal XS.3803.C Men's Watch • Sapphire Crystal • CARBONOX+ Case

The Luminox Master Carbon Seal XS.3803.C is an uncompromising men's dive watch from the proven 3800 Series, meeting the highest demands for durability and legibility. The case is crafted from CARBONOX+™, a carbon fibre-reinforced polymer developed by Luminox that is exceptionally lightweight yet extraordinarily resilient. With a case diameter of 46 mm, a scratch-resistant sapphire crystal, and water resistance of up to 30 ATM (300 metres), this watch is designed for demanding dive operations and military use.

The Master Carbon Seal XS.3803.C is powered by a Swiss quartz movement, Ronda 515, delivering precise and low-maintenance performance. All hands and indices are equipped with the patented Luminox Light Technology (LLT) system: tiny self-illuminating gas tubes provide up to 25 years of continuous legibility without any external light source, even underwater and in complete darkness. The NATO textile strap with rubber core ensures a secure fit on the wrist. The screw-down stainless steel case back reliably protects the movement against moisture and pressure.

Key Features of the Luminox XS.3803.C

• CARBONOX+™ Case: Carbon fibre-reinforced polymer, lighter than steel, extremely shock- and scratch-resistant, engineered for high-performance military requirements.
• Sapphire Crystal & 30 ATM Water Resistance: Extra-thick, scratch-resistant sapphire crystal combined with 300-metre water resistance for professional diving operations.
• Permanent Illumination LLT: Self-illuminating gas tubes on the hands and indices ensure reliable legibility in absolute darkness without any external light source.

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe case and bracelet with a soft, dry cloth to remove dirt and perspiration.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
  Important: Screw down the crown firmly beforehand!!!
• Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
• Avoid: Harsh chemicals, perfume, cosmetics and heat.
• Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
• Water resistance: Do not wear in the shower or bath, have it tested annually.
• Battery (quartz): Have a depleted battery replaced immediately.
• Mechanical watches: Full service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not directly with other jewellery (risk of scratching).
• When winding mechanical watches, lay them down flat; do not leave the crown pulled out.