The Vagbondage is not a tourbillion. The open view of the balance and spring can be a bit deceiving on first glance. There is some history on this piece but in short it's a movement made for another manufacturer that cancelled the project before completion. Journe later finished the project completing 69 pieces (plus a few unique ones). Vagabondage refers to the fact that the hour marker 'wanders' around the dial until the next hour takes the lead. You'll notice no mention of FP Journe on the front only a small engraving on the movement itself.