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DESCRIPTION
We are proud to announce our latest collaboration alongside Nico Leonard, unveiling the Grand Tonneau Ultra-Thin—the most refined and thinnest watch ever produced by the brand.
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SPECIFICATIONS
MODEL / CASE
DIAMETER
34 mm
THICKNESS
6.4 mm
LUG TO LUG HEIGHT
45 mm
CASEBACK
Display caseback
MATERIAL
Gold Plated 316L Stainless Steel
CRYSTAL
Sapphire Crystal with AR Coating
WATER RESISTANCE
5 ATM
ORIGIN
Switzerland (Swiss Made)
MOVEMENT
MOVEMENT
La Joux-Perret D101 Hand-Wound Movement
FUNCTIONS
Hours and Minutes
WINDING
Manual Winding
VIBRATIONS PER HOUR
21,600
POWER RESERVE
~50 hours
JEWELS
18
SHOCK PROTECTION
Yes
FINISHING
Blued screws and Côtes de Genève, visible through the open sapphire caseback
STRAP
STRAP
Integrated FKM rubber strap with quick release
WIDTH
20 mm, tapering to 16 mm
CLASP
316L butterfly buckle with logo, perlage and micro adjustment
COLOUR
Black
DIAL
COLOURS
Black Fumé, Turquoise Fumé, Yellow Fumé and Lava Red Fumé
CONSTRUCTION
Double-layered dial
FINISHING
Texturized fumé surface
COATING
Enamel-coated
GRAND TONNEAU ULTRA-THIN
Made together with Nico Leonard, the Grand Tonneau Ultra-Thin is the most refined and thinnest watch we have ever produced.
At just 6.4 mm, the ultra-slim profile adds comfort on the wrist while keeping the distinctive tonneau-shaped case that defines the Grand Tonneau collection. The dial has a double-layer construction with a texturized fumé finish, enhanced by an enamel coating for depth and vibrancy.
SLIM PROFILE
At just 6.4 mm, the thinnest watch we have ever produced, while keeping 5 ATM water resistance and a display caseback.
DOUBLE LAYER ENAMEL DIAL
A brass dial with a rich fumé effect and a subtle grain texture, under a transparent enamel glaze that adds depth without adding thickness.
LA JOUX-PERRET D101
The hand-wound D101 keeps the watch ultra-thin. Its blued screws and Côtes de Genève finishing show through the open sapphire caseback.
INTEGRATED BAMBOO BRACELET
An optional bamboo-style bracelet that follows the flow of the bezel, with a perlage-finished butterfly clasp and quick-release end links.
OUR THINNEST WATCH YET
In developing the Grand Tonneau Ultra-Thin, our goal was to go beyond expectations and create something truly exceptional. The distinctive case design challenged us to push our technical boundaries, resulting in the thinnest watch we have ever produced.
At just 6.4 mm thick, it keeps a 5 ATM water resistance rating and a display caseback – a significant technical milestone. The ultra-thin profile enhances comfort on the wrist while preserving the distinctive tonneau-shaped case that defines the Grand Tonneau collection.
DOUBLE LAYER ENAMEL DIAL
The dial is a defining feature of the Grand Tonneau Ultra-Thin. To complement the watch’s slim profile, we developed a refined two-layer construction that adds depth without adding thickness.
At its foundation is a brass dial, finished with a rich fumé effect and stamped with a subtle grain texture. This is overlaid with a transparent enamel glaze, which enhances depth and vibrancy while preserving the watch’s ultra-thin proportions.
Offered in four dial colours: Black Fumé, Turquoise Fumé, Yellow Fumé and Lava Red Fumé.