WATCH MOVEMENT SPRING 1.0 x 0.145 x 380 x 12

Watch mainspring 1.0 × 0.145 × 300 × 12 mm

Mainspring for a mechanical watch movement.

Technical parameters:

Spring height: 1.0 mm

Spring thickness: 0.145 mm

Spring length: 300 mm

Drum diameter: 12 mm