MDM.330.GRC.45
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.
Customize Watch
Watch Specifications
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. 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. Grand Cœur Pushers
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. 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. DLC coating
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. 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.1
Grand Cœur 3038
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Grand Cœur – Impulsive Red
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Grand Cœur Pushers
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Grand Cœur watchbox
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DLC coating
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Made with love in Zurich
Skeleton
How much of the clock can you leave out in order to pay homage to the movement. Every Skeleton fan has his own tolerance limit. For us, however, Skeleton watches are not just omitted. We added the dimension of the open heart with the use of glass and color. You don't just see time passing, you see it living. These watches live with you.
Made with love in Zurich
The heart of Maurice de Mauriac beats near the Paradeplatz in the studio in Tödistrasse. Maurice de Mauriac always and everywhere meets you as a friendly, human, warm family business. All watches are dreamed, developed and built here with love.
Determination, elegance and Swiss precision — values that define both Jil Teichmann’s game and the Rallymaster Swiss Tennis 🎾🇨🇭
As one of Switzerland’s leading tennis players, Jil embodies resilience, passion and a relentless pursuit of excellence on the world stage. We are proud to welcome her as ambassador for this special collaboration, celebrating the spirit of Swiss tennis and Swiss craftsmanship.
Photos: @philippmueller69
#MauriceDeMauriac #SwissTennis #Rallymaster #JilTeichmann #SwissMade
New serve: With the Rallymaster Swiss Tennis 🇨🇭🎾
Today, together with Swiss Tennis, we are presenting the Rallymaster Swiss Tennis to celebrate 130 Years of Swiss Tennis. Limited to 130 watches worldwide. Not because limitation creates luxury, but because an anniversary deserves something truly one of a kind.
Photos @miguel.siernav & @detail.studios
#MauriceDeMauriac #SwissTennis #Rallymaster #Tennis Watch
48H AT WIMBLEDON 🍓🎾
And no place we’d rather be!
Two days of tennis, strawberries & cream, walking @stansmithonline to Centre Court, meeting people, chasing the shade, carrying water bottles everywhere and somehow still leaving with more merch than planned.
Wimbledon is a whole vibe ❤️🔥 See you again next year (hopefully) #tennis #wimbledon #mauricedemauriac
130 years of Swiss Tennis 1896- 2026. 130 watches. Coming Soon. Stay tuned.
Official Launch 13 July 2026.
#Rallymaster #SwissTennis #SwissMade #withlove #LimitedEdition
A huge thank you to @ferrariclubswitzerland for letting us be part of your 25th anniversary weekend.
Celebrating this milestone surrounded by 35 Ferraris and the breathtaking Swiss Alps… honestly, what more could we ask for?
And yes… we finally got to sit in a few Ferraris and admire every little detail and dream for a moment.
Maybe one day;) Until then, we’ll keep doing what we love most: building watches with the same passion and dedication.
Thank you for having us. Grazie! 🇨🇭🐎
#mauricedemauriac #ferrari #swissalps #watches #clubwatches
BIG DATE for a BIG DATE ❤️🏁
25 years of Ferrari Club Switzerland.
The biggest Ferrari Club in Europe. More than 300 members. Countless kilometres, unforgettable drives and one shared passion.
To the members, the memories and the road ahead; thank you for letting us become a small part of your journey.
Here’s to the next 25 years. 🥂🐎
#mauricedemauriac # bigdate #ferrariclubswitzerland #ferrari #switzerland
25 watches for 25 years of @ferrariclubswitzerland ❤️🏁
Proud and honored to create the official Jubilee Edition for the biggest Ferrari Club in Europe.
Ferrari and Maurice de Mauriac share the same belief: true craftsmanship is driven by passion, precision, and the people behind every creation.
Thank you for your trust @ferrariclubswitzerland
#MauriceDeMauriac #FerrariClubSwitzerland #SwissMade #Craftsmanship #Passion FamilyBusiness
50 YEARS ADC, right on time❤️🔥
Thank you for having us @adcswitzerland. Besides our watchmaking classes, we were honored to sponsor the evening’s main prize: the L3 Sees Red ✨
Congratulations to the lucky winner and cheers to 50 years of creativity and inspiration.
#ADC #MauricedeMauriac #L3SeesRed #Zurich #watchmaking
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