0779 Watch Mainspring 1.45 x 0.11 x 318 (12 1/2")(Calibers in description)
Dimensions: 1.45 x 0.11 x 318 (12 1/2")
End Type: T End
Material: Swiss Made blue steel
Calibers:
Longines 11.12/62N, Longines 11.87, Longines 11.87N, Longines 11.88, Longines 11.88A, Longines 11.88N, Longines 12/84 N 22

Description
Dimensions: 1.45 x 0.11 x 318 (12 1/2")
End Type: T End
Material: Swiss Made blue steel
Calibers:
Longines 11.12/62N, Longines 11.87, Longines 11.87N, Longines 11.88, Longines 11.88A, Longines 11.88N, Longines 12/84 N 22
