0557 Watch Mainspring 1.30 x 0.12 x 343 (13 1/2") (Calibers in description)

Dimensions:  1.30 x 0.12 x 343 (13 1/2")

End Type: tongue end

Material: Swiss Made unbreakable

Calibers: 

AS 652, General 831, lemania 27, Lemania 27 GS, Lemania S 27, Lemania 1270, Lemania 1275, Lemania 1277, Lemania 1280, Lemania 1281, Omega 27 T 1, Omega 27 T 2, Omega 320, Omega 321,Omega 860, Omega 861, Omega 865, Omega 910, Omega 911, Omega 920, Omega 930, Tissot 26.5 AM