Founded in Le Locle in 1889, Doxa built its legend in 1967 with the SUB 300 — a professional diving instrument developed in close collaboration with Jacques-Yves Cousteau and one of the first watches to carry a no-decompression limit scale on its bezel. In 1969, a young Clive Cussler left his dive shop job with a DOXA SUB 300T as a parting gift. He never forgot it — the orange-dialled Doxa appeared again and again in his bestselling Dirk Pitt adventure novels, earning the brand a devoted following among readers and collectors worldwide. The SUB 300 Ti5 Clive Cussler, limited to 300 numbered pieces, is the most technically advanced tribute to that story yet produced.

Reference 823.50.121.20-SE14 is a 42.5 mm Grade 5 titanium automatic diver's watch, 13.4 mm in thickness, with a lug-to-lug distance of 45 mm, a screw-down Grade 5 titanium crown and a caseback engraved with the NUMA emblem — a nod to the fictional National Underwater and Marine Agency from Cussler's novels. The dial is an entirely new construction for Doxa: two superimposed layers of Grade 5 titanium, the upper laser-cut to reveal Super-LumiNova hour markers and indices beneath, creating genuine physical depth in the dial surface. A sandblasted finish plays light and shadow across the titanium, while signature DOXA orange highlights the oversized minute hand and the no-decompression limit scale on the bezel. A date window completes the layout. At its heart beats the Sellita SW200-1, COSC-certified, running at 28,800 vph with a 38-hour power reserve, decorated by Doxa. The domed glass-box sapphire crystal carries an anti-reflective coating. Water resistance is rated to 300 metres. The watch is presented on a black Dive Flex rubber strap with a pin buckle.

This Doxa SUB 300 Ti5 Clive Cussler Limited Edition is in mint condition and comes as a full set.