Suspension Spring

Slitting the pendulum rod top assembly.

Slitting the back cock suspension post.

Slitting completed.

Top of suspension spring, after beding and riveting. Several rounds of annealing were required to allow the tight bending of the brass.

Suspension spring lower end punched and ready for riveting.

Rivet prepared for insertion.

Riveting completed and ready for filing.

Completed suspension spring assembly.