For your consideration is this assortment of Bulova Buloloy Insertopak watch mainsprings in the original plastic organizer.
These appear to be new old stock springs. The color-coded tool is also included.
The cartridges along the left side of the organizer case (in red, white, blue, and green colors) are loaded with the springs. There are 13 springs in total. The cartridges on the right side of the organizer are empty. The full cartridges are marked as follows;
- 5 AB
- 6 AK
The case has a broken hinge.
Please see the photos for more detail.