CHRONO MODERN STEEL SMARAGD GREEN
MDM.330.ST.45.SGN
mechanical-automatic Swiss
Valjoux movement (ETA 7750)
stainless steel case 316L
screw-in crown, screw-down pusher
open case back
sapphire crystal with anti-reflective treatment on both sides
Water resistant until 100m
Watch Variations
Customize Watch
Watch Specifications
Screw-down pushers
Screw-down pushers confer an additional mechanical aspect to our watches. In order to operate the stopwatch function, you have to first unscrew the collar and, then, close it again after stopping it. Chrono , screw-down pushers, caseback
Our display back case uses a blue anti-reflective sapphire crystal and thus allow for an unobstructed view of the pulsating calibre. One has the feeling that the soul of the mechanical automatic movement can both be felt and seen. The watch is alive. Together with the possibility of the custom labelled rotor, each watch becomes a truly personal gift – even to oneself. ETA 7750 Movement
After the takeover by ETA, the Valjoux 7750 was re-named the calibre ETA 7750. This is quite possibly the most successful automatic chronograph movement of all time. The calibre stands out due to its high degree of accuracy and robustness. It has 25 stones, a ball bearing mounted rotor and a uni-directional winding mechanism. The 7750 has a 1/8-second counter, a 30-minute counter, a 12-hour counter, 28,800 half oscillations per minute and has a power reserve of ca. 44 hours. The loss of accuracy is 1-6 seconds per day. Movement revisions are recommended every 3 to 8 years-TOP Execution
-Chronograph mechanism with cams
-2 push buttons
-Self-winding mechanism with ball bearing
-Hours, minutes, small second
-Stop second device
-Regulator system ETACHRON and regulator corrector
-28.800 vibrations per hour; 4 Hz
-Chronograph 60 seconds
30 minutes and 12 hours counters
-Date and day, corrector
-25 Jewels
Stainless Steel
Not all steels are created equal. We use 316L stainless steel; one of the hardest premium steels in the world. In addition to its hardness and resistance, this high-quality steel stands out because of its finish as well as it very fine silver hue. 316L steel has a significantly lower nickel emission than, for instance, 904L steel, which is also a high-strength steel alloy. This is, for us, a reason to favour 316L stainless steel. 1
Screw-down pushers
2
Chrono , screw-down pushers, caseback
3
ETA 7750 Movement
-TOP Execution
-Chronograph mechanism with cams
-2 push buttons
-Self-winding mechanism with ball bearing
-Hours, minutes, small second
-Stop second device
-Regulator system ETACHRON and regulator corrector
-28.800 vibrations per hour; 4 Hz
-Chronograph 60 seconds
30 minutes and 12 hours counters
-Date and day, corrector
-25 Jewels
4
Stainless Steel
Modern
Every company has the mystique of its first employee, its first premises, its first product. The Chrono Modern is the founding mystique that has become a watch. It was the first "real" Maurice de Mauriac. What was revolutionary at the time was the dial designed by Daniel Dreifuss, which we now call the 0510 dial. The numbers from 0 to 55, rather than 1 to 12, indicated the time. The minutes are more important than the hours. An expression of the agility of its wearers. Since women also love this potent statement of time on their arms.
BECAUSE DOGS ARE FAMILY TOO! 🐕❤️
Celebrating the International Dog Day with a new twist: Our iconic striped NATO straps, now built to match your timepiece and your best friend. You can find the leashes and collars online & in store.
📸by @philippmueller69 #internationaldogday #dog #family #leashes #collar #watches #natostraps #colorful #colors #mdm #mauricedemauriac
August 25, 2025
A day to reflect on watch magic ✨
Two years ago today, something new began because something old had come to an end - without anyone looking for it. Massimo, Leonard and Masha lost their role model for what they are today: the movers and shakers behind MDM.
Daniel Dreifuss was suddenly missing not only as a family man and brand founder, but also as a great watch wizard, and the magic threatened to end.
Today, two years on, there are three watch wizards - and the magic has tripled.
In this time, three times as many watches have been developed, three times as many sold, and the magic still fascinates. It doesn’t always have to be the big moment when something dramatically disappears. It is the small magic that touches.
#MauriceDeMauriac #MDM #DanielDreifuss #RIP #RestInPower #RIP #🌈
A little story on Sunday: It all started with a parcel that wasn’t delivered...A Portuguese customer’s new watches were not delivered by the parcel service. The parcel began an odyssey and at some point we decided that one of us would take it to Cascais personally.
Of course, you then call Portuguese friends to meet up. Miguel Seabra is one such long-time friend. Miguel, a watch enthusiast, immediately calls a few more watch lovers and we sit together on the beach in Cascais and talk watches and philosophize.
At moments like this, our family expands to include people who share a special love.
…And the conclusion of the story: something good can also come out of something bad.
Happy Sunday everyone - TIME IS LOVE ❤️
#MauriceDeMauriac #MDM #cascaisportugal🇵🇹 #portugal #client #clientmeetup
Our newest ambassador and official member of the @lesclefsdorsuisse in St. Moritz 🗝️🛎️ We are proud to see the community grow - our goal is to have in every 5-Star hotel, at least in Switzerland, a member of the Clefs d‘Or wearing the official watch, made by yours truly.
#MauriceDeMauriac #MDM #lesclefsdor #lesclefsdorswitzerland
The perfect summer watch doesn’t exi - The watch:💕
The „original“ Rallymaster I, in his natural environement at the ligurian coast.
#MauriceDeMauriac #MDM #Rallymaster #tennis #liguria #portofino #liguriancoast #portofino🇮🇹 #splendindo
Arrive in style & leave even with more 💅 ✨ Thank you for the pitstop. Come soon again.
#MauriceDeMauriac #MDM #ferrari #ferrari412 #style
Happy Birthday Switzerland 🇨🇭❤️
August 1st – we celebrate Swiss National Day: a day that honors the unity, freedom, and shared history of our country. It’s a moment to pause and reflect on what truly matters: time and family.
#switzerland #nationalday #swissnationalday🇨🇭 #mauricedemauriac #mdm #watches #time #happybirthday
From Zurich to St. Moritz 🇨🇭🐮Swissness turned all the way up.
Cows on the left and mountains on the right.
And yes, you’ll find us all summer at Lesunja, St. Moritz. Drop by and say hi @lesunja #summer #switzerland #watches #stmoritz #mdm #mauricedemauriac
Events
GLOBUS POP-UP
30 .10 – 18 .11
Location: GLOBUS Bahnhofstrasse,
If you see the Ape here, you’ve found us. Because the smallest watch boutique in the world is only where you can have a good time.
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