Doxa SUB 300 Ti5 Review: Lightweight Titanium Dive Watch Upgrade | First Look (2026)

Unveiling the Doxa SUB 300 Ti5: A Dive Watch's Titanium Evolution

In the world of dive watches, Doxa's SUB 300 is an icon, and its recent titanium upgrade is a fascinating development. Personally, I find it intriguing how brands like Doxa are experimenting with materials, offering collectors a fresh take on classic designs.

Titanium's Allure

Doxa's decision to use Grade 5 titanium is a bold move. This material brings a unique blend of lightweight strength and corrosion resistance, which is perfect for a dive watch. What makes this particularly fascinating is the brand's careful approach; they wanted to maintain the SUB 300's iconic look while harnessing titanium's benefits.

Design Details

At 42.5mm, the SUB 300 Ti5 retains its predecessor's dimensions. The elliptical cushion case, with its proprietary unidirectional bezel, is a standout feature. The sawtooth grip and dual scales on the bezel are functional and aesthetically pleasing. The crown, bezel, and caseback in titanium add a modern twist to the classic design.

The dial, with its crosshair motif and printed markers, is instantly recognizable. Doxa's signature handset, with its distinctive hour and minute hands, ensures legibility. The available color options, from the vibrant Professional orange to the subtle Whitepearl, offer a range of choices for different tastes.

Strap and Lume Considerations

One interesting aspect is the decision to offer the SUB 300 Ti5 only on a rubber pin-buckle strap. While it maintains a consistent look, I wonder if collectors might prefer the option of a beads-of-rice bracelet or a diver's extension clasp for added versatility.

The Whitepearl model's fully-lumed dial is a highlight. It showcases the potential of Super-LumiNova, providing excellent visibility in low-light conditions. This feature, inspired by the Topper Jewelers limited edition, adds a unique twist to the collection.

Pricing and Availability

Priced at $3,190, the SUB 300 Ti5 is an attractive option for enthusiasts. It offers a premium titanium construction at a reasonable premium over the stainless steel version. The availability directly from Doxa ensures collectors can access this special edition easily.

Final Thoughts

The Doxa SUB 300 Ti5 is more than just a titanium upgrade; it's a testament to the brand's commitment to innovation while respecting its heritage. This watch showcases how materials can enhance a classic design, offering collectors a unique blend of tradition and modernity. It's an exciting development in the world of dive watches, and I can't wait to see how collectors respond to this titanium clash.

Doxa SUB 300 Ti5 Review: Lightweight Titanium Dive Watch Upgrade | First Look (2026)

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