Mainspring for Felsa 25/12

Height, diameter, thickness and length

2.0 Ă— 15.0 Ă— 0.18 Ă— 500 mmheight Ă— diameter Ă— thickness Ă— length
Note: We have transcribed this information to the best of our knowledge from the Générale Ressorts mainspring catalogue (GR 2, 1974). All information has been carefully checked but is provided without guarantee. Please check yourself before fitting that the mainspring fits, in particular height, diameter, thickness and length.

📏 Mainspring dimensions

GR no.HeightDiameterThicknessLengthType
58612.0 mm15.0 mm0.18 mm500 mmHand-wound, normal end hook

All dimensions in millimetres. The height of a mainspring is often also called its “width”. Source: Générale Ressorts, mainspring catalogue GR 2 (March 1974), page 74.

đź›’ Matching mainspring in our shop

We do not currently have a mainspring with exactly these dimensions in our shop. Feel free to write to us – we can often still find a suitable spring. Contact form · All mainsprings in our shop

đź”— According to the catalogue, the same mainspring (GR 5861) also fits

âť“ Frequently asked questions

Which mainspring fits the Felsa 25/12?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 2.0 × 15.0 × 0.18 × 500 mm (GR 5861, hand-wound, normal end hook).

Which other calibers use mainspring GR 5861?

According to the catalogue also in Felsa 247 Ă  249, Kaiser 8 15 JW 19, Kaiser 38/15, Silvana 1850/61, West End Railway service.

All Felsa mainsprings · Mainsprings

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