1611 Watch Mainspring 5.40 x 0.21 x 610 (24")(Calibers in description)
Dimensions: 5.40 x 0.21 x 610 (24")
End Type: Double Brace T
Material: Swiss Made Blue Unbreakable
Calibers:Β
Waltham 8 day 2275, running barrel

Description
Dimensions: 5.40 x 0.21 x 610 (24")
End Type: Double Brace T
Material: Swiss Made Blue Unbreakable
Calibers:Β
Waltham 8 day 2275, running barrel
