1347 Watch Mainspring 3.00 x 0.155 x 597 (23 1/2")(Calibers in description)
Dimensions:ย 3.00 x 0.155 x 597 (23 1/2")
End Type: Double Brace
Material: Swiss Made Unbreakable
Calibers:ย
Hamilton mainspring # 534B, Hamilton mainspring # 718051, Hamilton mainspring # 717040, Hamilton 950B, Hamilton 992B

Description
Dimensions:ย 3.00 x 0.155 x 597 (23 1/2")
End Type: Double Brace
Material: Swiss Made Unbreakable
Calibers:ย
Hamilton mainspring # 534B, Hamilton mainspring # 718051, Hamilton mainspring # 717040, Hamilton 950B, Hamilton 992B
