Product description
M100 irregular mainspring (MA001)
The mainspring is made of steel wire with irregular windings.
The coils have been tapered on the guide side which reduces the clumping effect of the spring, allowing it to retain its power longer.
| Colour | Black |
| Product height [cm] | 1.30 |
| Product length [cm] | 16 |
| Product weight [g] | 11 |
| Product width [cm] | 1.30 |
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