DOXA SUB 300 Ti5: the iconic Grade 5 titanium, COSC-certified diver's watch.
When DOXA introduced the SUB 300 to the public in 1967, it set the standard once and for all for professional dive watches accessible to enthusiasts worldwide.
The new DOXA SUB 300 Ti5 does not aim to reinvent a globally recognized icon, but rather to elevate its performance through the most advanced materials of modern engineering.
Grade 5 Titanium: lightness, robustness, and unmatched comfort
The decision to reintroduce Grade 5 titanium for the case, screwed case back, and screw-down crown meets a precise requirement: delivering maximum mechanical performance without compromising on daily wearability.
Compared to traditional stainless steel, Grade 5 titanium offers a significantly higher strength-to-weight ratio, reducing the overall mass on the wrist by approximately 40%.
In addition to its high mechanical rigidity, this material features outstanding biocompatibility and natural resistance to corrosion from saltwater, humidity, and extreme temperature changes.
Legibility and function: the core pillars of the SUB 300 Series
True to its roots, the SUB 300 Ti5 retains the technical features that made the original line legendary:
- Water resistance up to 300 meters (30 ATM): The case, paired with a screw-down crown and case back, ensures a watertight seal suitable for deep-sea exploration
- Patented unidirectional bezel: features a dual scale (depth in feet and dive time) designed for instant monitoring of non-decompression limits according to US Navy dive tables
- "Glass Box" Sapphire Crystal: treated with an anti-reflective coating, it protects the dial while ensuring maximum legibility from any viewing angle
- Super-LumiNova® Low-Light Visibility: hands and markers are generously coated with luminous material to ensure clear readability even in the darkness of the deep
- COSC-Certified Swiss Movement: powered by the Sellita SW200-1 automatic caliber, officially certified by the Contrôle Officiel Suisse des Chronomètres to guarantee high rate accuracy tested across multiple positions and temperatures
Seven personalities for a permanent collection
The SUB 300 Ti5 lineup comes in seven distinct color interpretations that reflect the brand's heritage and visual identity:
- Professional (Orange): DOXA's signature shade, originally designed for maximum visibility underwater
- Sharkhunter (Black): a timeless, understated classic perfect for everyday versatility
- Caribbean (Navy Blue): a deep hue evoking ocean depths
- Red Coral (Red): a vibrant, sporty option with a bold character
- Whitepearl (White): offered with either a black or white rubber strap, including a special radical version featuring a dial fully coated in Super-LumiNova® that transforms into a fully glowing surface when light fades.
Each model is paired with a Dive Flex rubber strap featuring a woven-texture finish and a pin buckle, engineered to fit the 42.50 mm x 45.00 mm case seamlessly
Who is the DOXA SUB 300 Ti5 For?
With its balance of historical heritage, technical execution, and cutting-edge materials, the DOXA SUB 300 Ti5 is an ideal choice for dive watch collectors and anyone seeking a high-value, long-lasting gift.
Whether destined for technical diving or to enrich a fine watch collection, the new titanium series represents one of the highlights of modern tool-watch engineering.
