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Screw-in crown 

Even our elegant business watches have to measure up to our nautical values. All of our watch cases, with the exception of our hand-wound watches, therefore feature a screw-in crown. This reliably guarantees that our watches remain water-resistant, even if the crown is subjected to impact underwater.

Screw-in crown 

Even our elegant business watches have to measure up to our nautical values. All of our watch cases, with the exception of our hand-wound watches, therefore feature a screw-in crown. This reliably guarantees that our watches remain water-resistant, even if the crown is subjected to impact underwater.

Water-resistant to 10 bars 

Only watches with a pressure resistance of at least 10 bars are suitable for swimming and bathing. Although watches with leather straps in particular should be kept out of the water, even these timepieces need to be able to survive an unintended swim unscathed, for example if they fall into the water whilst sailing.

Water-resistant to 10 bars 

Only watches with a pressure resistance of at least 10 bars are suitable for swimming and bathing. Although watches with leather straps in particular should be kept out of the water, even these timepieces need to be able to survive an unintended swim unscathed, for example if they fall into the water whilst sailing.

A clearly marked face

Mühle watches are time measuring instruments and their wearers therefore need to be able to tell the time at a glance. This is why our watch faces are characterised by their clear lines and design reduced down to the essentials.

A clearly marked face

Mühle watches are time measuring instruments and their wearers therefore need to be able to tell the time at a glance. This is why our watch faces are characterised by their clear lines and design reduced down to the essentials.

Scratch-resistant sapphire crystal 

Our scratch-resistant sapphire crystal has an anti-glare finish that ensures ultimate transparency and enables it to always provide a clear view of the face.

Scratch-resistant sapphire crystal 

Our scratch-resistant sapphire crystal has an anti-glare finish that ensures ultimate transparency and enables it to always provide a clear view of the face.

Distinctively masculine 

Our Mühle watches are always reminiscent of experienced sea dogs. They don't contain any superfluous embellishments or showy ornaments but instead stand out and make an impact thanks to their straightforward design and distinctively masculine appearance.

Distinctively masculine 

Our Mühle watches are always reminiscent of experienced sea dogs. They don't contain any superfluous embellishments or showy ornaments but instead stand out and make an impact thanks to their straightforward design and distinctively masculine appearance.

Design

What a Mühle watch should look like

Just like our marine chronometers and marine time systems, our wristwatches are time measuring instruments. When developing our new timepieces, we therefore focus on our three nautical values of precision, reliability and perfect readability. These values give our watches their characteristic appearance: straightforward, simple and without any frills, thus enabling wearers to read the exact time at a glance. We believe that this requirement is the elementary task that a watch needs to perform and therefore make it our priority ahead of all additional functions.

 

This even applies to an elegant timepiece such as the Teutonia. We make the design of the face and case our top priority in order to ensure that our watches precisely meet our requirements. The faces of our watches, for example, are therefore created by a small in-house design team led by CEO Thilo Mühle. A multitude of individual procedures are completed in order to give each Mühle watch its characteristic instrument design.

Movements

What makes a Mühle movement stand out

At a small family company like ours, our family expertise also plays an essential role when it comes to designing our movements. What complications make sense when used in a Mühle watch? What properties does the movement need to have in order to meet our high standards in terms of precision and reliability? These are questions best answered by a "Mühle", which is why our designers always work in extremely close cooperation with Thilo Mühle and can also consult his father Hans-Jürgen Mühle for advice and assistance at any time. This family approach gives a Mühle movement its own specific character that is clear for all to see. 

In fact, its unique fine regulation enables it to be recognised at a glance. Our patented woodpecker neck regulation can now be found in each of our three movement categories together with a matching balance cock, from our manufactory-made "RMK" movements through to our "MU 94 - -" basic movements with comprehensive modifications and right through to our "Mühle version" basic movements.

MU 9413

A tried and tested basic movement produced by a Swiss manufacturer forms the basis of our chronograph mechanism. Nevertheless, we expect every single Mühle movement to meet the highest standards in terms of precision and reliability and therefore technically optimise every basic movement ourselves. These improvements are sometimes so comprehensive that our movements require their own calibre. The MU 9413, for example, boasts features such as:

  • a woodpecker neck regulation with a balance cock a Mühle rotor with an automatic bridge
  • a Mühle three-quarter plate including the Glashütte click and
  • a removable escape wheel bridge

MU 9413

A tried and tested basic movement produced by a Swiss manufacturer forms the basis of our chronograph mechanism. Nevertheless, we expect every single Mühle movement to meet the highest standards in terms of precision and reliability and therefore technically optimise every basic movement ourselves. These improvements are sometimes so comprehensive that our movements require their own calibre. The MU 9413, for example, boasts features such as:

  • a woodpecker neck regulation with a balance cock a Mühle rotor with an automatic bridge
  • a Mühle three-quarter plate including the Glashütte click and
  • a removable escape wheel bridge

The patented woodpecker neck regulation 

We developed our fine regulation in 2003 in order to ensure the accuracy of our movements in even the toughest of conditions. Our particularly shockproof regulation gets its name from the special shape of its counter-pressure spring, which resembles the neck and head of a woodpecker.

The patented woodpecker neck regulation 

We developed our fine regulation in 2003 in order to ensure the accuracy of our movements in even the toughest of conditions. Our particularly shockproof regulation gets its name from the special shape of its counter-pressure spring, which resembles the neck and head of a woodpecker.

The Mühle rotor

Our automatic watches are powered by the Mühle rotor, an efficient component consisting of an engraved middle segment and a special oscillating weight connected to the outer edge of the middle segment with gold-plated rivets. When assembled, the rotor is mounted on an automatic bridge that we developed ourselves.

The Mühle rotor

Our automatic watches are powered by the Mühle rotor, an efficient component consisting of an engraved middle segment and a special oscillating weight connected to the outer edge of the middle segment with gold-plated rivets. When assembled, the rotor is mounted on an automatic bridge that we developed ourselves.

The Mühle three-quarter plate 

The three-quarter plate is a typical characteristic of high-quality Glashütte watches. It helps to keep the spring barrel and gear train in a stable position and gets its name from the fact that it covers approximately three quarters of the movement. In line with the Glashütte tradition, our three-quarter plate is fitted with the classic Glashütte click and a removable escape wheel bridge.

The Mühle three-quarter plate 

The three-quarter plate is a typical characteristic of high-quality Glashütte watches. It helps to keep the spring barrel and gear train in a stable position and gets its name from the fact that it covers approximately three quarters of the movement. In line with the Glashütte tradition, our three-quarter plate is fitted with the classic Glashütte click and a removable escape wheel bridge.

Parts Manufacturing

Why we make our components ourselves

We expect every single movement to meet the highest standards in terms of precision and reliability, which is why we produce the components used in our wristwatches ourselves. Our CNC machining centres enable us to precisely produce the components that we have designed with measurements that are accurate to the nearest thousandth of a millimetre. These are then used as a basis for further manual processing in which the workpieces are transformed into movement components ready for assembly in a step-by-step procedure. The workpieces are precisely checked at each stage of processing in order to ensure that each component precisely meets our standards. 

CNC machining centres


We use our CNC machining centres to manufacture plates, bridges, cocks and other flat parts for our movements. The machining centres are first used to carve out one side of the future movement component, from its contours right through to the smallest drilled hole. The component is then turned over and processed on the other side until it only remains connected to the base material by tiny 'bridges'.

The cutter head drills into the brass base plate at a speed of over 40,000 rotations per minute. A special cutting and lubricating oil is used to cool down the metal from the heat produced during this process. The liquid also removes the metal shavings from the component at the same time.

Precision down to the nearest thousandth of a millimetre


Trusting is good but checking is better, which is why our blanks are precisely measured immediately after being produced in order to ensure that all of our movement components fit together perfectly when assembled.

Finishing

Why a thousandth of a millimetre isn't precise enough

Even though our CNC machining centres enable us to produce the workpieces for our movements with precise measurements that are accurate to the nearest thousandth of a millimetre, we could not produce a watch that keeps accurate time without the expert final touch of our finishers. In the first stage of the finishing process, each workpiece must first be deburred by hand. It is then further processed in several work steps before being completed using finishing measures developed especially for the component in question.

 

All of the members of our team at Nautische Instrumente Mühle-Glashütte are first and foremost watchmakers. All of the work that we carry out on our movements therefore initially aims to make our time measuring instruments more precise and more reliable. As a result, the decisions that we make when it comes to producing our watches are not only based on aesthetic but also, and above all, functional reasons. These functional aesthetics form the focus of our work.

Polishings

 

All of the moving parts in a watch movement are subject to a certain amount of wear, but the more smoothly the gear train works, the more this wear can be prevented. We therefore compact, harden and polish the metal surfaces. Our polishings are not only extremely attractive, but also provide the surface of our levers and springs with greater density and tension, thus facilitating an even higher level of accuracy.

Blued screws

 

The attractive colour of our blued screws also has a functional purpose. The bluing process, also known as tempering, helps to provide extra corrosion protection. In the process, the screws are heated to a temperature of 300° Celsius, which gives them their stunning blue colour.

Grainings

 

Alongside our functional finishing processes, we also use grainings such as Glashütte solarisation to improve the appearance of our movements for traditional reasons. These grainings are applied by hand and make each of our watches truly unique. In the past, the grainings were also used for the specific purpose of removing imperfections left behind after the manual sawing and drilling of parts.

Decoration of the Mühle Rotor

The middle segment of the Mühle rotors is finished with Glashütte solarization.

Assembly and Regulation

Why our watches are always slightly fast

Our watchmakers at Nautische Instrumente Mühle-Glashütte ensure that our watch movements are always in the best of hands during the production process. After all we consider each of our movements to be an individual and treat it as such. This is why when a Mühle movement is assembled, it is not handled by several different people but instead by one single watchmaker, who is responsible for both the assembly and regulation of the movement.

 

Component after component is painstakingly added to the Mühle movement until it is finally ready for regulation. Every Mühle watch is tested in all six positions in which a watch can be worn on the wrist. Our patented fine regulation facilitates the particularly sensitive adjustment of the movement in order to achieve maximum precision. Our internal limits are oriented towards the chronometer standard, which stipulates that movements must maintain a precision of between 0 and a maximum of +8 seconds per day.

Testing in six positions

Once a movement has been fully assembled, its operation and accuracy are tested in all six positions on the timing machine. These tests are used to precisely measure and record whether the movement runs fast or slow. After the movement has been tested, our watchmakers regulate it in order to achieve the lowest possible time deviation on the whole.

The crowning glory

The crowning glory during the assembly of a Mühle automatic movement is the mounting of the rotor. The rotor consists of the oscillating weight and a middle segment that is engraved with the Mühle logo and finished with Glashütte solarisation. Once the fastening screw has been tightened in accordance with a specific torque requirement, the movement is ready for regulation.

Particularly polite

One of the key aspects of our corporate philosophy is to ensure that Mühle watch wearers are never too late because of their time measuring instruments. Being a bit early is more polite than turning up late, which is why we regulate our watches so that they are always slightly fast.

The Final Check

How meticulous watchmakers can be

Once the regulation of the movement is complete and its functions have all been fully tested one last time, the movement is encased, meaning that the face and hands are attached to the movement and the entire group of components is placed in the case. The new Mühle watch is now ready to go out into the big wide world. Almost, at least. Before a watch leaves our company, it still has to prove its qualities in a painstaking final inspection. For almost an entire week, our most experienced master watchmakers test the timepiece, examining aspects such as its precision, water resistance and flawless beauty.

 

The final inspection begins with a careful run-in period during which the watch is automatically wound by a special watch winder. Once fully wound, we leave the watch to fully run down. When doing so, we not only check the power reserve, but also confirm whether the watch complies with our required accuracy values for the different winding states of the spring barrel.

Water resistance testing

Given our nautical connections, the water resistance testing of a watch is, of course, a particularly important focus at Nautische Instrumente Mühle-Glashütte. We carry out this test by subjecting every watch to overpressure. We are then able to use highly sensitive measuring instruments to detect even the smallest of defects.

Checking precision

While the regulation process only involved the examination of the movement in six different positions, the final inspection tests the entire watch. The large timing machine enables us to either examine chronographs or three-hand watches depending on the test log selected.

Attaching the strap

Once a Mühle watch has passed all of the tests involved in the final check, the watch strap is attached. Even after this stage is complete, we yet again examine the watch by conducting a final visual inspection. The watch is then placed in its case and sent on its way to its new owner.

Wristwatches

The mechanical wristwatches made by Nautische Instrumente Mühle-Glashütte fully focus on the fundamental task of a timepiece: to measure time exactly and to display it so that it can be read at first glance.


3806

Robert Mühle Mondphase GOLD

This new model of the "R. Mühle & Sohn" manufacturing line is limited to 25 timepieces and offers a case in 18-carat red gold.

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3876

ProMare Lady

"Nautical by nature" is the motto of the ProMare Lady. Why, you may ask? Well, it is produced using elements of the sea. 

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1614

S.A.R. Rescue-Timer

The function and design of the S.A.R. Rescue-Timer were to a large extent determined by the captains in the German Maritime Search and Rescue Service.

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3966

Panova Grau

A time measuring instrument with many different qualities: the Panova Grau captivates both watch connoisseurs and mechanics novices with its fascinating contrasts.

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3726

Teutonia Sport I (Clous de Paris)

With its impressive tachymeter function, the new Teutonia Sport I whisks us away back in time to the heyday of major automotive manufacturers in Saxony.

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