Mainsprings

1.30 x 0.125 x 360 Swiss Mainspring

2 x 13 x 6.5 1.10 x 0.08 x 180 GR2576 Bestfit MS-213W

2 x 8 x 13.5 1.10 x 0.135 x 340 GR2680 Bestfit MS-28P

2.00 x .075 x 400 Manual Swiss Mainspring / 11″ x 14″ x 15″ GR5714

3 x 13 x 7.5 1.20 x 0.08 x 200 GR2868 Bestfit MS-313A

3 x 14 x 19.5 2.30 x 0.205 x 500 GR6446 Bestfit MS-143X

4 1/2 x 10 x 11 Swiss Made Mainspring DB End.  1.30 x 0.11 x 280.  GR3281-DB Bestfit MSS-4510KS Fits Poljot/Vostok 2408, 2409, 2409A, 2414, 2414A  

4 x 12 x 8.5 1.30 x 0.09 x 220 GR3217 Bestfit MS-412C

4 x 14 x 8.5 1.30 x 0.07 x 220 GR3186 Bestfit MS-414C

5 x 12 x 11.5 1.40 x 0.09 x 300 GR3629 Bestfit MS-512K

5 x 13 x 9.5 1.40 x 0.08 x 240 GR3607 Bestfit MS-513E

5.5 x 9 17.5 1.45 x 0.125 x 440 GR4007-D Bestfit MS-559V

6 x 10 x 9.5 1.50 x 0.115 x 240 GR4162 Bestfit MS-610E

6 x 11 x 9.5 1.50 x 0.10 x 240 GR4118 Bestfit MS-611E

6 x 11 x 10.5 1.50 x 0.10 x 260 GR4119 Bestfit MS-611H

6 x 12 x 9.5 1.50 x 0.09 x 240 GR4098 Bestfit MS-612E

6 x 15 x 7.5 1.50 x 0.06 x 200 GR4041 Bestfit MS-615A

6 x 6 x 16 1.50 x 0.18 x 420 GR4312 Bestfit MS-65V

6 x 9.5 x 10.5 1.50 x 0.12 x 260 GR4173 Bestfit MS-695H

6 x 9.5 x 12.5 1.50 x 0.12 x 320 GR4176 Bestfit MS-695M

7 x 10 x 10.5 1.60 x 0.105 x 240 GR4500 Bestfit MS-710H

7 x 11 x 12.5 1.60 x 0.10 x 320 GR4487 Bestfit MS-711M

7 x 12 x 10.5 1.60 x 0.09 x 260 GR4463 Bestfit MS-712H

7 x 13 x 9.5 1.60 x 0.08 x 240 GR4445 Bestfit MS-713E

7 x 15 x 9.5 1.60 x .06 x 240 GR4413 Bestfit MS-715E

7 x 8.5 x 16.75 1.60 x .135 x 420 GR4580 Bestfit MS-785V

8 x 10 x 13 1.70 x .11 x 320 GR4907 Bestfit MS-810N

8 x 12 x 10.5 1.70 x .09 x 260 GR4852 Bestfit MS-812H

8 x 12 x 11.5 1.70 x .09 x 300 GR4854 Bestfit MS-812K

8 x 9.5 x 13.5 170 x 0.12 x 340 GR4936 Bestfit MS-89P

9 x 10 x 13.75 1.80 x .11 x 360 GR5278 Bestfit MS-910N

9 x 11 x 12.5 1.80 x .10 x 320 GR5254 Bestfit MS-911M

American Pocket Watch Mainsprings

Bestfit White-A-Loy Automatic Mainsprings

Quality Swiss & European Made Generic Mainsprings for popular Omega calibers

Quality Swiss Made Generic Rolex Mainsprings for all popular calibers.

MSS-WA41 Automatic Mainspring (GR3983X) Swiss Made
White-A-Loy Size 5 1/2 x 10 x 13 3/4 /  1.45 x .11 x 320

Fits Seiko Movement #s: 2501A, 2501B, 2501C 2505A, 2505B, 2516B 2517A, 2517B Measurements: 1.05 x 0.075 x 260 / 1.5 x 13 10.5 (auto)

Fits Seiko Movement #s: 460 Measurements: 1.05 x 0.12 x 380 / 1.5 x 12.5 x 14.5

Fits Seiko Movement #s: 60M, Goldfeather Measurements: 1.15 x 0.115 x 360 / 2.5 x 10.5 x 15.5

Fits Seiko Movement #s: 394, 395, 400, 603 6201B, 6205B, 6206A, 6206B 6215A, 6216A, 6217A  6218A, 6218B, 6218C 6245A, 6246A Measurements: 1.05 x 0.11 x 360 / 1.5 x 10 x 14.25 (auto)

Fits Seiko Movement #s: 6105 , 6106, 6109 6117 , 6118 , 6119  6138 , 6139  6306, 6309 , 6349

Fits Seiko Movement #s: 402 3140 6220A, 6220B, 6220C, 6220D 6222A, 6222B, 6222C Measurements: 1.05 x 0.13 x 340 / 1.5 x 9 x 14.25/GR2536-1/MS-159R

Fits Seiko Movement #s: 3180 Measurements: 1.45 x 0.13 x 420 / 4.5 x 11 x 18.5

Fits Seiko Movement #s: 830, 840 4005A, 4006A 8305A, 8306A, 8325A Measurements: 0.95 x 0.12 x 400 / 0.5 x 9.5 x 14.5 (auto)

Quality Swiss Made Mainsprings for all popular calibers.