0905 Watch Mainspring 1.50 x 0.19 x 521 (20 1/2")(Calibers in description)
Dimensions: 1.50 x 0.19 x 521 (20 1/2")
End Type: Tongue End
Material: Swiss Made unbreakable
Calibers:
Minerva 19.39 split timer, Minerva 184, Minerva 185, Minerva 189

Description
Dimensions: 1.50 x 0.19 x 521 (20 1/2")
End Type: Tongue End
Material: Swiss Made unbreakable
Calibers:
Minerva 19.39 split timer, Minerva 184, Minerva 185, Minerva 189
