The Moritz Grossmann Hamatic, and its “Modernly Old-School” Self-Winding Hammer System

Last year, German maker Moritz Grossmann, one of Glashütte’s best agents, introduced its extremely close to home vision of an automatic watch, the Hamatic . Noteworthy, precisely interesting yet at the same time a model, the watch required a couple of more months to be idealized. Be that as it may, here is the last form of the Moritz Grossmann Hamatic, presently without patterns on the dial yet with similar attractive development and its exceptional self-winding hammer system. 

An tribute to early perpétuelle watches

The entire purpose of the Moritz Grossmann Hamatic unmistakably isn’t noticeable on its habillage – it does, in fact, appear as though an exemplary hand-wound, time-just piece. All that this watch represents lies in its development, and specifically, its deliberately anachronic self-winding system. This watch is a tribute to the soonest automatic watches, watches made around 1780 highlighting an alleged “hammer” or “guard” winding mechanism.

For hundreds of years, watches have been mechanical (until the appearance of the quartz/battery-controlled in the last part of the 1960s), implying that their developments depended on the energy given by a heart. What’s more, similar to each sort of spring, on the off chance that you need it to deliver its force, you need to wind it first. It was at first done physically, by hand-winding the development on account of a key or later a crown. Yet, a few watchmakers began to imagine that it would be somewhat helpful to have a watch running unendingly, without the need to wind its mainspring.

There is still some discussion concerning who really created the main automatic development, which is still regularly – yet wrongly – credited to Swiss watchmaker Abraham-Louis Perrelet. As indicated by industry writer Gregory Pons (in French) , in view of examination done by antiquarian Joseph Flores, the primary automatic development ought to be credited to Belgian watchmaker Hubert Sarton, in 1778.

Picture by Antiquorum Image by Breguet

Soon after, ace watchmaker Abraham-Louis Breguet would embrace his first endeavors to deliver an automatic watch. In the wake of examining the idea, he made the perpétuelle development – a French word alluding to the interminable movement of the watch. Breguet’s first watches comprising this system were delivered when 1780, with the case of the Perpetuelle No.1 – 8/82. This watch is one of the most established known Breguets with this self-winding system, and furthermore the most established enduring Breguet watch to date. It showed up available in 1997, at an Antiquorum closeout .

Now, let’s get somewhat more specialized. While today’s automatics depend on a focal rotor (99% of the creation), a miniature rotor or a fringe rotor , back in 1780 the idea was somewhat unique. Recall that a pocket watch was worn in a pocket, implying that it was pretty much in a static situation (instead of the steady developments of the wrist invigorating a wristwatch). Consequently, the most ideal choice to stack the spring by utilizing the development of the wearer was Breguet’s system, a hammer-winding instrument – fundamentally, a swinging three-sided mass situated on a similar hub as the wearer’s body so it could profit by the littlest developments, particularly when strolling, so the hammer was swinging from left to right, and in this manner stacking the heart. Nonetheless, this gadget brought about stuns being moved to the entire movement.

This is the place where Moritz Grossmann found the motivation for its first automatic watch, the Hamatic, however with a hugely improved hammer-winding mechanism.

The development of the Moritz Grossmann Hamatic

Let’s start our audit of the Moritz Grossmann Hamatic, back to front, by taking a gander at its development – on the grounds that, let’s be straightforward, this is the place where this watch establishes the most connection. Inside the Hamatic, and now altogether covered up on the dial side, is surely one of the most delightful automatic developments available, and genuinely, the just one of its class.

The Caliber 106.0 isn’t dependent on the current types 100.X, the hand-wound development found in the GMT . The winding system isn’t added on top of a manual type however incorporated into it. So what’s that…? All things considered, the Hamatic development is a tribute to these collectible, early automatic hammer types delivered by Breguet and different watchmakers. It is likewise a purposeful time misplacement since this sort of self-winding system (at any rate, the old renditions) is undeniably less productive and results in stuns harming the development, leaving the stage free for the verifiably more proficient rotor. This was stage one, since this development isn’t simply a tribute however carries the idea into the 21st century.

The base for the automatic-hammer component is the huge part that covers the development predominantly: the swinging hammer. While a rotor pivots on 360°, this part depends on more modest motions, from left to directly on a moderately short curve, to stack the origin. The hammer, a huge oval and open-worked component, is composed of different parts and comprises a thick, strong gold mass on its limit making the important imbalance.

Now, Moritz Grossmann claims that the winding productivity of this system is practically equivalent to a standard rotor. How? Since the focal point of gravity of the hammer is twice as a long way from the turn compared to a rotor (where the distance is a large portion of the development, however here practically the whole breadth of the type 106.0), this outcomes in more influence and force, which means more energy sent to the fountainhead. Notwithstanding that, while antique hammer gadgets were unidirectional,  it now works in the two ways of the swinging movement. Once more, this adds to the efficiency.

Also, while one of the primary issues with old hammer gadgets were stuns, the Moritz Grossmann Hamatic highlights two safeguard parts, incorporated into the oval part – the two end-springs, which ingest a portion of the vibrations and hinder the movement of the hammer, working related to a long focal edge. That was for the initial segment of the winding component, yet what might be said about the transmission of this movement to the mainspring?

In request to change over the energy into a rotating movement, the motions of the hammer body are gotten by two snap switches. The two-route course of pivot of the snap wheels guarantees an even revolving movement, which is moved to the free-haggle by means of decrease wheel to the barrel’s fastener wheel to wind the heart. As a single tick wheel draws in to wind the barrel, the other is separated and the other way around. Their elective activity makes winding bidirectional. A revolution of only five degrees can be utilized to wind the mainspring.

Finally, the automatic winding system is complemented by a manual winder planned as a burden winder that is mounted on a different extension. The burden guarantees that the manual winder is constantly uncoupled from the fastener wheel when the Hamatic system is dynamic in light of movement. In manual-winding mode, the decrease gear is detached from the fastener wheel by a tick pawl idler.

So, all things considered, the Moritz Grossmann Hamatic not just takes an old idea and incorporates it in an advanced watch, however it genuinely reclassifies and improves this hammer winding gadget, which brings about what absolutely is simply the best and “Haute-Horlogerie-inspired” self-winding system presently accessible – despite the fact that I actually love a fringe rotor. Just wow…

The rest of the development isn’t to be ignored. This enormous type includes more indulgences, like its (lovely) in-house stun safe Grossmann offset with 4 dormancy and 2 balancing screws, combined with an offset spring with a No. 80 Breguet terminal bend. The entire escapement beats at 21,600 vibrations/hour. The force save is comfortable, at 72 hours.

The beautification of the development is essentially magnificent, with the standard 3/4 plate being supplanted by a genuinely open principle extension, and all the parts are adorned with roundabout graining, Glashütte ribbings, cleaned inclines, screwed gold chatons, hand-made etching (both for the engravings and the chicken scaffold) and anglages for what it’s worth. Also, that oval swinging hammer…!

An in any case moderate watch

Conservative… however positively! While the early models introduced in 2018 showed patterns on the dial, this last form of the Moritz Grossmann Hamatic is more old style in its execution and depends on a plain dial. Indeed, while worn, nothing would tell you what ticks inside, as it would seem that a straightforward time-just watch – and, as far as I might be concerned, this is style to its best definition.

The instance of the Hamatic is traditionally molded, with stretched, moderately solid drags and a 41mm measurement. Two comments. In the first place, these carries are very much planned and bended, taking into account the watch to be adjusted. Second, the thickness of the watch is “only” 11.35mm, which thinking about the development inside remaining parts sensible. The execution is faultless and the case is accessible in either 18k rose gold (as captured) or 18k white gold. The watch is worn on a careful gator lash with prong buckle.

The dial, as perfect and basic as it might appear, additionally requires a nearer investigation. It is made of strong silver with an opaline completion. The outcome is a somewhat grained surface with tactful metallic reflections. The little seconds sub-dial is genuinely recessed into the dial adding some profundity to this generally straightforward showcase. The prolonged, slight Roman numerals and the smooth railroad track add to the style of the watch and reverberation the pocket watch motivation found on the movement.

Last however not least, the hands. Once more, prudent, prolonged, flimsy, yet very point by point. On the in spite of other Grossmann watches with spear hands, the hour hand stands apart gratitude to its pear-formed tip, while the moment hand has a needle-like, slim (perhaps excessively thin) plan. The cleaned group of the hands is additionally magnificently executed. The hand-cleaned steel hands are tempered to an earthy colored violet tint – an uncommon tone. Furthermore, on the whole objectivity, this degree of execution is infrequently found in present day watchmaking.


Back in 2018, the models of the Moritz Grossmann Hamatic previously established a significant connection with us however today’s last models are just bewildering. As a matter of first importance, the brand settled on the correct decision in having a plain dial. Second, the development is a dining experience for the eye and in fact talking it honors antique pocket watches yet in addition improves these early automatic components on each and every level.

Personally, I love this combination of outrageous watchfulness for the habillage (case, dial, hands) and showing of abilities on the development side. Notwithstanding that, the execution is noteworthy and fragile. This mechanical wonder comes at a high, however as I would see it, defended price.

Price and availability

The Moritz Grossmann Hamatic has been accessible from approved retailers since October 2019, in two renditions – 18k rose gold (ref. MG-002302) and 18k white gold (ref. MG-002303). The two models are similarly evaluated, at EUR 37,600 before charges. More subtleties at .