Why do brands include more than one tourbillon to a watch movement? The primary answer to that question is because it makes the watch more accurate. Originally developed to limit/eliminate the influence of gravity, the tourbillon is still the most efficient in a pocket watch, because that remains mostly in the same position. Their effectiveness in wrist watches is limited, but two (or more) is always better, as a differential can take the average rate of the tourbillons and combine them into a single output, which will, by the law of averages be more precise. These are some of our favorite watches with double tourbillons!
Usually, complicated watches come with equally complicated names. Jacob & Co, however, keeps it clean, crisp and simply with the Twin Turbo. A very appropriate name by the way, because the watch features indeed two major complications, and does so in a very expressive style.