THAL 300 Tourbillon
One tourbillon, built to descend.
Two ways to light the deep.
THAL 300 Tourbillon
Made to descend
Most tourbillons are created for the display case. THAL 300 was created to descend.
Crystallized titanium
A circle of light
A lume-infused carbon-fiber bezel forms a powerful ring of light, joined by luminous hands for visibility as the water darkens.
Exposed architecture
A fully skeletonized mechanical movement reveals a luminous tourbillon at six o'clock — framed by sandblasted bridges and contrasting rose-gold flanks.
Beyond the surface
The strength of a serious diving watch with the lightness and refinement of high horology.
Named for the sea itself
THAL takes its name from Thalassa — the ancient Greek embodiment of the sea.
The name represents the ocean in all its forms: calm at the surface, powerful beneath it, and mysterious at its greatest depths.
Created as Grandeur's first diving collection, THAL brings exposed mechanical architecture and the prestige of a tourbillon into an environment where few would expect to find them.
THAL 300 Abyss Blue
Inspired by the electric glow of life beneath the ocean's surface.
In daylight, Abyss Blue appears cool, technical, and refined. As darkness arrives, its luminous carbon-fiber bezel, hands, and tourbillon awaken in brilliant blue light.
THAL 300 Signal Orange
Inspired by high-visibility marine equipment and the final light on the horizon.
Signal Orange surrounds the exposed mechanical architecture with a warm, intense glow designed to command attention above or below the surface.
THAL 300 Skeleton Tourbillon
- Collection
- Grandeur THAL
- Model
- THAL 300 Skeleton Tourbillon
- Case material
- Crystallized titanium
- Case diameter
- 40 mm
- Case thickness
- 11 mm
- Est. weight
- ≈ 33 g, depending on strap
- Water resistance
- 300 m / 30 bar
- Bezel
- Lume-infused carbon fiber
- Movement
- Skeletonized mechanical tourbillon
- Tourbillon
- Luminous cage at six o'clock
- Finishing
- Sandblasted bridges
- Bridge details
- Contrasting rose-gold flanks
- Power reserve
- 40 hours
- Crystal
- Sapphire
- Luminescence
- Bezel, hands and tourbillon
- Lug / strap width
- 20 mm
- Included straps
- Two, interchangeable & colour-matched
- First strap
- Elastic fabric
- Second strap
- Premium FKM rubber
Go beyond the surface
THAL 300 is a limited edition. Leave your email for launch timing, allocation and early access — before it surfaces anywhere else.