1415 Watch Mainspring 3.40 x 0.23 x 533 (21")(Calibers in description)
Dimensions: 3.40 x 0.23 x 533 (21")
End Type: Hook End
Material: Swiss Made Blue Steel
Calibers:Β
Kienzle 31/172 (time) Kienzle 31/173 (time), Muller-Mulheim 39/75 (time), Solo 75 (time)

Description
Dimensions: 3.40 x 0.23 x 533 (21")
End Type: Hook End
Material: Swiss Made Blue Steel
Calibers:Β
Kienzle 31/172 (time) Kienzle 31/173 (time), Muller-Mulheim 39/75 (time), Solo 75 (time)
