The observation watches from Glashütte were distinguished by two dial variants. The first, like the Terrasport I, featured large hour numerals with a minute scale on the outer edge of the dial. The second variant featured a small inner hour circle and a separate outer minute track, which allowed the navigator to take time quickly. The Terrasport I Beobachter is based on this design.... Show more »
Terrasport I Observer
The observation watches from Glashütte were distinguished by two dial variants. The first, like the Terrasport I, featured large hour numerals with a minute scale on the outer edge of the dial. The second variant featured a small inner hour circle and a separate outer minute track, which allowed the navigator to take time quickly. The Terrasport I Beobachter is based on this design.
In the Terrasport, classic Mühle virtues meet finely tuned design accents: The red-marked second hand with its corresponding red marker at 12 is just one example.
Rich in contrast
The dials of the Terrasport have a high-contrast design and are designed for the best possible readability. Luminescent hands and hour markers ensure that the time is clearly visible even at night.
Observation watches were an integral part of aviators' equipment. On-board navigators used them in conjunction with an octant to determine their position during flight.
Large case diameter for best readability: With a diameter of 44 millimeters, the brushed stainless steel case clearly refers to the size of its models, which often measure 55 millimeters.
For the classic "Nav.B" watches, there were two designs: One was characterized by large hour numerals on the dial edge, like the Terrasport I, and one had a small hour circle with separate minute track inside, like the Terrasport I Beobachter.
Pilot watches from Glashütte
With the Terrasport, time flies by. On the one hand, because it measures time as a classic pilot's watch - on the other, because it takes us back to the beginning of wristwatch production in Glashütte. Since 1845, the town has been synonymous with fine timepieces, but primarily in the form of pocket watches. It was not until the late 1930s that wristwatches were increasingly manufactured: as precise, easy-to-read pilot's watches. At the height of their development, pilot watches were precisely tailored to their intended use: pilots were equipped with chronographs, on-board navigators were given large observation watches, other crew members smaller three-hand watches.
Where can I find technical details for my Mühle wristwatch?
The most important technical information on watches in our current collection can be found on our website by visiting the “Wristwatches” page and selecting your collection and model. Technical details for your model can also be found in the instruction manual for your watch. If you have any further questions, especially regarding older models, please feel free to contact us.
What precision can I expect from my Mühle wristwatch?
It is normal for mechanical watches to display a certain amount of tolerance because fluctuating temperatures, the tension of the winder springs or the position in which a watch is stored or worn can all affect its operation and accuracy. As we do not know how a watch will be worn, we always regulate our watches so that they are slightly fast, with a precision of between 0 and max. +8 seconds per day. Why? Because we want to ensure that Mühle watch wearers are never too late because of their time measuring instruments.
How often does my mechanical Mühle wristwatch need to be serviced?
Mechanical watches should be serviced from time to time. Over the years, the processes taking place inside the movement cause a certain amount of abrasion due to parts wearing. This abrasion contaminates the oil and sometimes forms deposits, which may cause the precision of the watch to deteriorate. We therefore recommend that our watches be fully serviced every four to five years. We advise wearers to get the watertightness of their watches checked every two years.