Key takeaways
• DOXA has launched the SUB 300 Ti5 Clive Cussler, a numbered limited edition watch of 300 pieces honoring the late novelist and maritime explorer on his 95th birth anniversary.
• The timepiece marks the return of Grade 5 titanium to the DOXA collection and introduces an innovative dual-plane, layered dial architecture.
• The watch is priced at USD 3,390 (CHF 2,890 / EUR 3,190), with a portion of the proceeds directly supporting NUMA, the marine exploration non-profit organization founded by Cussler.
DOXA pays tribute to the celebrated American novelist, maritime explorer and founder of NUMA,
who would have celebrated his 95th birthday today.
Since his passing in February 2020, his family has remained closely connected to the brand.
This COSC-certified timepiece marks the return of Grade 5 titanium at DOXA, featuring an all-new two-level dial architecture that creates a striking sense of depth and dimensionality.
A numbered limited edition of 300 pieces (XXX/300) — available on doxawatches.com and,
for the first time, through authorized DOXA retailers. From July 15, 2026.
(BIEL/BIENNE) – Legendary novelist and adventurer Clive Cussler, who shared his passion for DOXA SUB watches through his hero Dirk Pitt, would have celebrated his 95th birthday today, July 15. DOXA marks the occasion by returning to its origins — the SUB 300, the foundational watch introduced in 1967 — reimagined for this special edition in Grade 5 titanium.
The choice of model is deliberate. The SUB 300 is where it all began. Introduced in 1967, it was the first dive watch designed for the general public while meeting the demands of professional diving.
The choice of material is equally meaningful. Grade 5 titanium — lighter, stronger and highly corrosion-resistant — naturally reflects the spirit associated with Clive Cussler and the world of his novels.
This edition is limited to 300 numbered pieces, in direct reference to the model itself. Originally conceived as a series of 95 watches in tribute to what would have been Clive Cussler’s 95th birthday this year, production was exceptionally increased to 300 pieces in response to strong demand. The SUB 300 Ti5 Clive Cussler will be available on doxawatches.com and – this is a first – at authorized DOXA retailers. This opens broader access to this tribute edition, while preserving the exclusive character associated with DOXA special editions. Part of the proceeds will go to support the work of NUMA, founded by Clive Cussler.
A First: The Dual-Plane Dial Architecture, Creating Depth And Dimension
The SUB 300 Ti5 Clive Cussler introduces an entirely new dial architecture. It is, in fact, composed of two superimposed dials, both crafted from Grade 5 titanium, which together create a layered effect combining technical precision with visual impact.
The lower dial carries the Super-LumiNova® hour markers and the minute track. On the upper dial, positioned a short distance above the first, openings matching the exact proportions of the hour markers — with a central aperture aligned with the index beneath and two lateral cut-outs reproducing its full geometry — have been laser-cut, revealing the luminous elements below. The date aperture and minute markers are produced using the same technique.
The effect is twofold: the infinitesimal space between the two levels creates a subtle impression of depth, while the interplay of light and shadow — perceptible both in daylight and in low-visibility conditions — enhances the dial’s presence without ever compromising legibility. With its sandblasted finish, it retains its full functional character, while inviting the eye to return — much like one watches the surface of the ocean, knowing that what matters most lies beneath.
Legibility, Versatility, Reliability — The Fundamentals Remain Intact
Like the inaugural model introduced in 1967, the SUB 300 Ti5 Clive Cussler is water-resistant to 300 meters and equipped with DOXA’s patented unidirectional rotating bezel. Its dual scale correlates depth and dive time, helping divers remain within the no-decompression limits established by the US Navy.
Beneath the scratch-resistant anti-reflective “glass box” sapphire crystal, all dive-related displays are coated with Super-LumiNova®, ensuring excellent legibility in low-visibility conditions. The oversized minute hand — a historic SUB signature — is rendered in DOXA orange (a nod to the original) to draw the eye to the most critical information immediately.
The depth indications on the bezel’s outer ring also feature this distinctive orange tone, contrasting with the black markings of the inner ring dedicated to dive time. The date window at 3 o’clock incorporates a detail unique to this edition: the numerals 15, 7 and 31 appear in DOXA orange, referencing Clive Cussler’s birth date.
Powered by a Swiss automatic movement with exclusive DOXA decorations beating at 28,800 vibrations per hour (4.0 Hz), the watch delivers a comfortable power reserve of approximately 38 hours. The screw-down caseback and crown — both also crafted from Grade 5 titanium — complete a package water-resistant to 300 meters (~984 feet), providing ample margin for underwater exploration.
The Return Of Titanium At DOXA
The SUB 300 Ti5 Clive Cussler marks the return of Grade 5 titanium to the DOXA collection — a material renowned for its exceptional strength-to-weight ratio, corrosion resistance and comfort on the wrist. The case (42.50 mm × 45.00 mm, thickness 13.40 mm), dual-plane dial, screw-down caseback and crown are all crafted from Grade 5 titanium (Ti5), making this one of the lightest — alongside DOXA’s carbon models — and most resilient watches the brand has ever produced.
The caseback: a component in its own right
Also crafted from Grade 5 titanium, the screw-down caseback bears the emblem of NUMA (National Underwater and Marine Agency), the COSC certification and the individual numbering of each watch (XXX/300).
The bracelet: vintage in spirit, timeless in execution
The SUB 300 Ti5 Clive Cussler is fitted with a black Dive Flex rubber strap featuring a tropical-inspired aesthetic, whose signature perforated pattern evokes the spirit of the 1960s, when the original SUB 300 opened the world of professional diving to the wider public.
An Enduring Partnership With NUMA
In keeping with Clive Cussler’s commitment to preserving maritime heritage, DOXA will donate part of the proceeds from this special edition to the National Underwater and Marine Agency, the organization he founded in 1979 to search for and preserve historic shipwrecks.
Dirk Cussler’s son Clive, who is himself also an author, said, “The connection between DOXA and my father was never simply a commercial partnership — it was a shared adventure, built around the values he believed in and carried forward today through the NUMA organization he created. Bold, creative and driven by limitless curiosity, he always forged his own path, whether searching for historic wrecks or writing new stories. This titanium SUB 300 captures something of who he truly was, and I’m deeply grateful to DOXA for honoring his memory with such authenticity.”
Jan Edöcs, CEO of DOXA, said, “Through his novels, Clive Cussler introduced DOXA to readers around the world, with the SUB constantly present on Dirk Pitt’s wrist. As we mark what would have been his 95th birthday, we are returning to the watch that began the SUB story — the SUB 300 — reinterpreted here in Grade 5 titanium. Lightweight, exceptionally durable, demanding to work with and built to last, this material felt like the natural choice for an edition dedicated to Clive Cussler. We are deeply grateful to the Cussler family for the extraordinary friendship and trust they continue to share with DOXA.”
See now, Buy now:
The DOXA SUB 300 Ti5 Clive Cussler, a numbered limited edition of 300 pieces (XXX/300),
is available starting today on doxawatches.com
and through authorized DOXA retailers.
CHF 2,890.00 / EUR 3,190.00 / USD 3,390.00
#Doxawatches
#YourCallToAdventure
About DOXA
The symbol of your call to adventure? A DOXA watch. Your trusted timekeeper as you explore new horizons and push boundaries. DOXA was founded in Le Locle, the cradle of Swiss watchmaking. Since 1889, its expertise has combined tradition with continuous innovation. Among the milestones that shaped its history, DOXA became the first brand in 1967 to introduce a dive watch for the general public equipped with a unidirectional rotating bezel designed to monitor dive time and help ensure diver safety during no-decompression ascents. Thanks to its major innovations, the DOXA SUB became an instantly recognizable icon, notably through its orange dial. Today, Montres DOXA SA remains faithful to the principle established more than 130 years ago: producing high-quality watches at the right price. The name “DOXA SUB” stands for some of the most iconic dive watches in horological history. And the adventure continues. #YourCallToAdventure
About Clive Cussler
Clive Cussler was an internationally renowned author and maritime explorer. He also founded the National Underwater and Marine Agency (NUMA), a nonprofit organization dedicated to preserving maritime and naval history through the search for historically significant lost vessels. Clive Cussler wrote or co-authored more than 50 books across five popular series: Dirk Pitt — famously wearing his DOXA watch — NUMA Files, Oregon Files, Isaac Bell and Fargo. His books have been published in more than 40 languages and in over 100 countries. Clive Cussler passed away in 2020, leaving behind an extraordinary literary legacy.
About NUMA
Founded by the late Clive Cussler, the National Underwater and Marine Agency (NUMA) is a U.S.-based nonprofit organization dedicated to uncovering the secrets of maritime and naval history through the search for historically significant lost vessels. Under Clive Cussler’s leadership, a fearless team of maritime experts and NUMA volunteers undertook daring expeditions to discover some of history’s most important shipwrecks. Together, they explored more than sixty vessels lost to the depths, each carrying stories waiting to be revealed. Their most recent discovery is the Carpathia, the ship that rescued hundreds of survivors following the sinking of the Titanic. NUMA returns all recovered artifacts to national and federal authorities or donates them to museums and universities. Ready to experience the thrill of discovery?
DOXA SUB 300 Ti5 CLIVE CUSSLER
Technical Data
Model name
DOXA SUB 300 Ti5 Clive Cussler –limited edition of 300 numbered pieces (XXX/300)
Indications
Hours, minutes, seconds, date
Case
Material: Grade 5 titanium
Dimensions: 42.50 mm × 45.00 mm
Thickness: 13.40 mm
“Glass box” sapphire crystal with anti-reflective treatment
Lug width: 20 mm
Grade 5 titanium screw-down crown
Grade 5 titanium screw-in caseback — NUMA emblem, COSC certification, XXX/300 numbering
Water resistance: 30 ATM / 300 meters / approximately 984 feet
Bezel
Unidirectional rotating bezel – DOXA patent
Dial
Two superimposed Grade 5 titanium dials, upper dial laser-cut to create a layered relief effect, sandblasted finish
Movement
Swiss Sellita SW200-1
Mechanical self-winding movement, COSC-certified (Official Swiss Chronometer Testing Institute)
Power reserve: approximately 38 hours
Frequency: 28,800 vph (4.0 Hz)
Jewels: 26
Decorations: DOXA
Special features
Oversized DOXA orange minute hand
Date display: numerals 15-7-31 shown in DOXA orange (Clive Cussler’s birth date)
Bezel: outer ring (depth scale) with DOXA orange indications, inner ring (dive time scale) with black indications
Strap
Black Dive Flex rubber strap, pin buckle
Retail price: CHF 2,890.00 / EUR 3,190.00 / USD 3,390.00
