For our test of the Bathyscaphe Flyback-Chronograph, we first measured its rate on a timing machine. Then, to get a close look at the movement, Caliber F385, we asked watchmaker Florian Pikor, deputy director of the service center for the retailer Wempe in Munich, to take the watch apart. Its fast-paced balance, and the fact that the movement had been finely adjusted in six positions, not the usual five, raised our expectations for the timing test. Those expectations were met, and then some: the rate results were excellent. With an average daily gain of just 0.7 seconds and a greatest difference among the different positions of only 3 seconds, the watch earned all 10 points in the “rate results” category. Its performance was equally good when the chronograph was running: a 1.2-second gain per day and a greatest daily difference of just 2 seconds among the different positions. The amplitude, i.e., the arc through which the balance swings, was greater in the flat positions than in the hanging positions, but its decline remained within the normal range. We were pleased to see that switching the chronograph on exerted only a very slight influence on the amplitude.
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