Chrono Modern Skeleton DLC “Grand Cœur”


Mechanical-automatic Swiss Concepto movement (Cal. 3038)
Titanium case with black DLC coating| Ø 45 mm
Screw crown, Screw-down pusher | open case back
Sapphire crystal with anti-reflective treatment | Red Sapphire Casebacksport | DLC Steel Bracelet

Limited to 48 Pieces only

The Grand Cœur is alive

With this watch, you get life, not only time

The WatchBros have brought the Grand Cœur to life. In her beats a blood-red heart. The Grand Cœur lives from the genes of Maurice de Mauriac’s founder and the creative power of his sons’ youth.

The Grand Cœur has an exceptional Manufacture movement, has been designed with transparency, and a unique red Sapphire Case back.

Those who hold the watch in their hands feel the mastery, become in awe, and feel that the watch is not representing the time, but the young, pulsating life.

Only 48 Grand Cœur will be available. The number stands for the place where each Grand Cœur comes to life – Tödistraße 48 in Zurich. 48 beating hearts that beat for the wearers of the watch. A watch and life can hardly be more intense.

Color variations


Watch specifications

Special characteristic

Grand Cœur 3038

In our see-through cases, a red, anti-reflective sapphire crystal reveals the vibrant caliber. You have the feeling of being able to see and feel the soul of the mechanical automatic movement. The watch is alive. This automatic movement with a central rotor is specially made to our quality standards by Concepto. It beats 28,800 times per hour, has an Incabloc shock protection system, 29 jewels, and 48 hours of power reserve.

Special characteristic

Grand Cœur – Impulsive Red

Massimo (28) and Leonard Dreifuss (25), have built the Grand Cœur, as both a homage to their father and as a beacon emblematic of the future vision the brand hopes to embark on. The watch aims to symbolize and honour life, and is therefore customised with its own personalised heartbeat for its wearer. This is expressed by moving the balance and the escapement to the top of the movement and the red of the case back.

Special characteristic

Grand Coeur Pusher

Screw-down pushers confer an additional mechanical aspect to watches. In order to operate the stopwatch function, one has to first unscrew the collar and, then, close it again after stopping it. The crown is always decorated with an M.

Special characteristic

Grand Cœur watchbox

We spared no expense for the Grand Cœur box and used only the best material. The packaging consists of an inner and outer watch box. Both are covered with leather. The inside is made of Soprano leather. The inner watch box is designed for traveling.

Special characteristic

Made with love in Zurich

The heart of Maurice de Mauriac beats near the Paradeplatz in the atelier located in the Tödistrasse. One encounters Maurice de Mauriac always and everywhere as a personable, human and warm family business.

Special characteristic

DLC coating

Stainless steel or titanium with a DLC-coating (Diamond-Like-Carbon) stands out via its beautiful grey / black colour. DLC makes stainless steel extremely abrasion and scratch resistant. Moreover, the layer of carbon applied in a state-of-the-art vacuum process is also highly anti-allergenic.

Special characteristic


Titanium is extremely corrosion resistant and very strong despite its relatively low density. Titanium is a third lighter than stainless steel and impresses with an attractive grey tone.

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