Manual Mainsprings 1.41mm - 1.45mm

Mainspring, 1.45 x 0.120 x 270 x 9.50, Manual

Mainspring, 1.45 x 0.120 x 315 x 10.00, Manual

Mainspring, 1.45 x 0.120 x 315 x 10.50, Manual

Mainspring, 1.45 x 0.120 x 320 x 10.00, Manual

Mainspring, 1.45 x 0.125 x 345 x 10.50, Manual

Mainspring, 1.45 x 0.125 x 360 x 11.50, Manual (Supplied in old tub style not ring)

Mainspring, 1.45 x 0.125 x 375 x 11.00, Manual

Mainspring, 1.45 x 0.130 x 300 x 10.00, Manual

Mainspring, 1.45 x 0.130 x 380 x 10.50, Manual, ETA 2750 [GR4010-1]

Mainspring, 1.45 x 0.130 x 381 x 12.00, Manual

Mainspring, 1.45 x 0.135 x 340 x 11.00, Manual

Mainspring, 1.45 x 0.135 x 345 x 11.50, Manual

Mainspring, 1.45 x 0.150 x 431 x 13.00, Manual

Mainspring, 1.45 x 0.150 x 431 x 13.50, Manual

Mainspring, 1.45 x 0.150 x 440 x 13.50, Manual [GR4020]

Mainspring, 1.45 x 0.150 x 450 x 14.00, Manual (Supplied in old tub style not ring)

Mainspring, 1.45 x 0.165 x 485 x 15.00, Manual

Mainspring, 1.45 x 0.165 x 530 x 15.00, Manual

Mainspring, 1.45 x 0.185 x 415 x 14.50, Manual

Mainspring, 1.45 x 0.200 x 520 x 16.00, Manual