0680 Watch Mainspring 1.40 x 0.08 x 266 (10 1/2")(Calibers in description) ETA 2368 This multi-branch key is a

This multi-branch key is a handy tool for clock makers to wind clocks with one key

Hermle part number is E021-2500

Fine glass bristles are bound in cord to unwind as bristles wear down

2 1/2" x 1/8" Natural

Single Barrel Pendulum brass with steel rods measuring 6 1/2" long & 2" wide

0680 Watch Mainspring 1.40 x 0.08 x 266 (10 1/2")(Calibers in description) ETA 2368 This multi-branch key is aDimensions: 1. 40 x 0. 08 x 266 (10 1 2") End Type: Tongue End Material: Swiss Made blue steel Calibers: AS 655, AS 953, AS 955, AS 959, AS 985, AS 1011, AS 1046, General 90, General 90A, General 900, Helbros 89, KF 19 25, KF 19 26, KF 19 35, KF 19 521, Lavina 115, MST 423, Recta C3, Recta C7, Recta C8 5, Recta C, Recta CA, Recta C12, Recta 18 12CA, Recta C24 1, Universal 458