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However, it is important not to lose the reflex of observing the other second hand of the chronograph to determine the exact measured time. A high frequency calibre without an adapted display is a bit vain and this 10 second scale is very practical. In any case, the performances of the movement are there with a power reserve of 60 hours for a frequency of 5hz and especially this capacity to make a turn of the dial in 10 seconds which considerably improves the reading precision. I would have liked, for example, to see a slight contrast between the winding mass and the rest of the movement. Its finishing is correct and neat but as often with Zenith, it is more the architecture of the movement that is pleasant to observe than the decorative finishing as such. I think it has a nice depth effect, it offers a very technical and complex rendering and the fact that it is more airy and open reinforces its perceived quality. I really like the presentation of this movement. The El Primero 3600 calibre is visible through the transparent back.
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