There are a total of 10 Jecht Spheres positioned throughout Spira. These are small movie spheres that tell the story of High Summoner Braska, Auron, and Jecht as they went on their pilgrimage to defeat Sin ten years ago. Finding these spheres will unlock Auron’s Overdrives and a trophy! Below is a list of those 10 spheres, along with their locations. The first one will be found automatically, and then the others can be found afterwords in any order.
Jecht Sphere 1
Located in Macalania Forest after the Spherimorph boss fight.
Jecht Sphere 2
Located in Besaid to the right of the Temple's entrance.
Jecht Sphere 3
Located on the bridge of the S.S. Liki.
Jecht Sphere 4
Located in the Luca Stadium basement, outside the Blitzball locker rooms.
Jecht Sphere 5
Located on the south side of the Oldroad of the Mi'ihen Highroad.