Manual Mainsprings 1.36mm - 1.40mm

Mainspring, 1.40 x 0.100 x 310 x 9.50, Manual

Mainspring, 1.40 x 0.100 x 330 x 9.00, Manual

Mainspring, 1.40 x 0.100 x 380 x 10.00, Manual [GR3668]

Mainspring, 1.40 x 0.100 x 460 x 11.50, Manual

Mainspring, 1.40 x 0.100 x 505 x 12.00, Manual

Mainspring, 1.40 x 0.103 x 280 x 8.50, Manual

Mainspring, 1.40 x 0.103 x 325 x 9.50, Manual (Supplied in old tub style not ring)

Mainspring, 1.40 x 0.103 x 460 x 11.00, Manual

Mainspring, 1.40 x 0.108 x 285 x 8.50, Manual

Mainspring, 1.40 x 0.108 x 285 x 9.00, Manual

Mainspring, 1.40 x 0.110 x 215 x 8.50, Manual

Mainspring, 1.40 x 0.110 x 250 x 8.50, Manual

Mainspring, 1.40 x 0.110 x 260 x 8.50, Manual

Mainspring, 1.40 x 0.110 x 280 x 8.00, Manual

Mainspring, 1.40 x 0.110 x 300 x 9.00, Manual

Mainspring, 1.40 x 0.110 x 340 x 10.00, Manual, Felsa 4010, 4015, 4017, 4018, 4019 [GR3700]

Mainspring, 1.40 x 0.110 x 360 x 9.50, Manual - T-End

Mainspring, 1.40 x 0.110 x 460 x 12.00, Manual

Mainspring, 1.40 x 0.110 x 520 x 12.50, Manual

Mainspring, 1.40 x 0.110 x 535 x 13.00, Manual