Undone aquadeep trigalight gmt watch

The ocean leaves
its signature

The ocean never passes without leaving a trace. Tides, currents and shifting sands carve patterns unique to every depth, natural signatures of movement, time and transformation.

Invisible to most, they tell the story of the world beneath the surface. The Undone Aquadeep Trigalight GMT is a automatic watch with self-powered tritium illumination that glows continuously for up to 25 years, a 24-hour GMT hand for tracking a second time zone, and a titanium case, sapphire crystal, and 500m water resistance. The Aquadeep Trigalight GMT watch carries that signature on its dial while standing apart as a serious tool watch. It is a high-performance dive watch designed for extreme underwater conditions.

Built for urban creative professionals and design-conscious wearers who want functional fashion with real capability, this page looks at the design inspiration, tritium illumination system, automatic GMT movement, materials, and engineering behind the watch. For anyone choosing a durable, distinctive timepiece that can move between city life, travel, and adventure, that mix of constant low-light visibility, dual-time practicality, and robust construction makes the Aquadeep Trigalight GMT especially compelling.

Sculpted by the sea

Every glance, a reminder of the ocean's quiet artistry

Trigalight goes
where light can't

Sunlight disappears. Batteries run out. Aquadeep Trigalight relies on neither, self-powered tritium illumination across the dial, hands and GMT display delivers unwavering visibility whenever darkness takes over.

Trigalight is a Swiss-made illumination system that uses gas tubes filled with tritium to glow continuously for up to 25 years, no charging, no light exposure needed.

Time without
borders

No matter how far the journey takes you, the Aquadeep Trigalight is a model that balances travel utility with everyday versatility. Powered by the NH34 GMT automatic movement, the Aquadeep Trigalight follows a second time zone effortlessly keeping one eye on the present, and another on home. Its design transitions seamlessly from wetsuits to tailored clothing, reflecting how dive watches move easily between casual and formal wear.

Automatic · 24-hour GMT hand · exhibition caseback

As an independent brand offering, it supports personal identity through personalized dial printing and custom strap options.

Engineered
to the aquadeep trigalight gmt spec

Instrument readout · full disclosure

More things are engineered into this clean instrument-style presentation than first meets the eye.

Diameter43.5 mm

MovementNH34 Automatic GMT With Date

Thickness17.5 mm

GMTDedicated 24-hour hand

Case materialGrade II titanium case, sandblasted for durability; 40% lighter than steel, with the highest strength-to-weight ratio of all metals and strong corrosion resistance to seawater and chlorine

CrystalDouble-domed sapphire crystal for clarity and scratch resistance

Case finishBlack DLC coating

CasebackTitanium Open Caseback

BezelBlack Titanium

Water resistance500 m / 1640 ft

DialOcean-textured multi-layer, fully luminous dial for visibility underwater

CrownScrew-down

Helium escape valveBuilt for deep-sea dives

IlluminationTritium Gas Tube

Straps includedBlack Codura with Orange Stitching

[ PRE-ORDER ] Delivery form August 2026