ETA 2325 Hairspring Watch Part Balance Spring

NOS Felsa 4000 Complete Watch Movement Balance (Wheel & Spring)

Omega Cal 351 Watch Parts Movement Balance Fork Wheel Spring 350 354 352 353 2

Durowe 420 Watch Balance Hairspring watch part balance spring

ETA 761 Hairspring Collet Left balance spring watch part balance spring

ETA 761 Hairspring Collet Right balance spring watch part balance spring

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Otero 40 Hairspring Watch Part Balance Spring