Original Weihrauch Piston Spring HW50 < 7.5 Joules

Remaining stock from the times when we equipped our kits with Weihrauch mainsprings. Also usable in models HW35, 77, 97, 80, 85, 95 and 98, but then with additional washers.
Power <7.5 Joule, length 210 mm, wire thickness 2.8 mm - 27.5 coils

Scope of delivery
Weihrauch mainspring for HW50 <7.5J