The question of whether to let a chronograph's second hand run continuously is a common one among watch enthusiasts, particularly those owning Breitling chronographs equipped with the ETA 7750 movement. This article delves into the specifics of this question, focusing on the implications of letting the central seconds hand – the *Zentralsekunde* – run constantly on Breitling watches, specifically those employing the robust ETA 7750 calibre. We'll explore the technical aspects, practical applications, potential drawbacks, and address common concerns regarding service and maintenance.
The ETA 7750: A Workhorse Movement
The ETA 7750 is a legendary automatic chronograph movement known for its robustness and reliability. Its widespread use in many prestigious watch brands, including Breitling, is a testament to its quality. The statement "Das 7750 ist ein Traktor, da kann man die Stoppfunktion ruhig dauerhaft mitlaufen lassen" (The 7750 is a tractor, you can safely let the stop function run continuously) reflects the movement's inherent durability. This doesn't imply reckless disregard for proper watch care, but rather highlights the movement's capacity to handle the continuous operation of the chronograph seconds hand without significant detrimental effects. The "tractor" analogy speaks to its resilience and ability to withstand regular, even constant, use.
Chronographen Dauerhaft Laufen Lassen: The Pros and Cons
The practice of letting a chronograph run continuously, particularly the central seconds hand (Chronosekunde als permanente Zentralsekunde verwenden), presents both advantages and disadvantages.
Advantages:
* Second Time Zone Indication: As mentioned in the original German text, letting the chronograph seconds hand run continuously offers a practical way to track a second time zone. While not as precise as a dedicated GMT complication, it provides a readily visible, albeit approximate, indication of a different time zone. This is particularly useful for travelers. Simply set the chronograph to the desired time zone, and the central seconds hand will track that time alongside the main timekeeping function.
* Continuous Running and Mechanical Movement: For some, the constant movement of the chronograph hand adds to the visual appeal and appreciation of the mechanical movement's intricacies. The mesmerizing sweep of the hand provides a dynamic element to the watch's aesthetic.
* Reduced Wear on the Mechanism (debatable): While some argue that constantly engaging the chronograph mechanism might cause increased wear, the robustness of the ETA 7750 mitigates this concern significantly. The argument rests on the idea that starting and stopping the chronograph puts more stress on the mechanism than keeping it running. However, this is a matter of ongoing debate among horologists.
Disadvantages:
* Increased Power Consumption: Continuously running the chronograph will undoubtedly increase the power consumption of the watch. This may lead to a slightly shorter power reserve, although the impact is generally minimal with a well-maintained ETA 7750.
* Potential for Increased Wear (debatable): While the ETA 7750 is durable, continuously running the chronograph mechanism might theoretically lead to slightly accelerated wear over an extended period. This is, however, a highly debated point, and the extent of this increased wear is likely negligible for most users.
* Accuracy Concerns: The chronograph function, while robust, is not as precisely regulated as the main timekeeping mechanism. Consequently, the time indicated by the continuously running chronograph seconds hand might drift slightly over time, impacting its accuracy as a second time zone indicator.
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