Nearly six decades after the introduction of the SUB 300 in 1967, DOXA adds a new material to the permanent collection with the SUB 300 Ti5.
Following the limited SUB 300 Ti5 Clive Cussler edition introduced earlier in 2026, Grade 5 titanium now becomes available across seven permanent expressions of the iconic diver, including the familiar Professional, Sharkhunter, Caribbean and Red Coral colourways, as well as two Whitepearl versions.
The choice of Grade 5 titanium brings a different set of properties to the established SUB 300 architecture. The material offers a high strength-to-weight ratio, mechanical rigidity and resistance to corrosion, while weighing approximately 40% less than stainless steel.
For a watch intended for prolonged wear both underwater and on land, the reduction in weight also changes the wearing experience without altering the fundamental construction of the dive instrument.
The SUB 300 Ti5 measures 42.50 mm in diameter and 45.00 mm from lug to lug, with a thickness of 13.40 mm and 20 mm lug width.
The Grade 5 titanium construction extends to the screw-down crown and screw-in caseback, while the domed “glass box” sapphire crystal is treated with anti-reflective coating.
Water resistance is rated to 300 metres, or 30 ATM and approximately 984 feet.
The watch retains the characteristic functional architecture of the SUB 300, including DOXA’s patented unidirectional rotating bezel with its dual scale.
The outer scale indicates depth, while the inner scale corresponds to dive time and allows divers to remain within the no-decompression limits established by the US Navy.
Beneath the sapphire crystal, the dive-related indications are coated with Super-LumiNova, while the oversized minute hand remains the most immediate visual reference on the dial.
Inside, the SUB 300 Ti5 is powered by a Swiss-made Sellita SW200-1 automatic movement, individually COSC-certified as a chronometer. Operating at 28,800 vibrations per hour, or 4 Hz, the 26-jewel calibre provides approximately 38 hours of power reserve.
The movement is decorated by DOXA and combines the practical requirements of a modern dive watch with the precision expected from a certified mechanical chronometer.
The permanent collection comprises seven expressions.
The Professional retains the orange dial that has become closely associated with the DOXA SUB, while the Sharkhunter uses a black dial and the Caribbean a deep blue one.
The Red Coral introduces a vibrant cherry-red dial, available in two configurations with either a matching red or black Dive Flex rubber strap.
The Whitepearl versions introduce a more substantial change than a new dial colour alone.
Their dials are entirely coated with Super-LumiNova, creating a luminous surface that changes considerably between day and night.
In daylight, the white dial contrasts with the metallic grey of the titanium case; in darkness, the luminous treatment provides an even and highly visible display.
The white version can be combined with either a white or black Dive Flex rubber strap, while the other models are paired with tone-on-tone or black versions of the same woven-texture rubber strap.
The return of Grade 5 titanium to the permanent SUB 300 collection therefore represents an evolution rather than a reinterpretation of the model's original design.
The SUB 300 itself dates to 1967, when DOXA introduced it as a professional-grade dive watch intended for the general public, with its patented rotating bezel and highly legible orange dial establishing many of the characteristics that remain associated with the model today.
Titanium was not part of that original 1967 construction. Instead, DOXA's modern use of the material on the SUB 300 Ti5 follows a more recent development.
The limited SUB 300 Ti5 Clive Cussler, unveiled in July 2026, was the first SUB 300 to use Grade 5 titanium and combined the material with a newly developed two-level titanium dial. The new permanent-collection Ti5 retains the same basic case dimensions and material strategy while returning to the more familiar single-plane dial and established colourways of the collection.
The new SUB 300 Ti5 is available from DOXA and authorised retailers, priced at €2,990 or US$3,190. doxawatches.com
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