Mainspring for Forster 2075

Height, diameter, thickness and length

1.70 × 9.0 × 0.09 × 320 mmheight × diameter × thickness × 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
48551.70 mm9.0 mm0.09 mm320 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 88.

🛒 Matching mainspring in our shop

No mainspring with exactly these dimensions in our shop at the moment.

🔄 Alternative mainsprings

Same height, diameter equal or slightly smaller. Please check yourself before ordering.

🔗 According to the catalogue, the same mainspring (GR 4855) also fits

❓ Frequently asked questions

Which mainspring fits the Forster 2075?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.70 × 9.0 × 0.09 × 320 mm (GR 4855, hand-wound, normal end hook).

Is this mainspring available in the shop?

An exact match is not in stock right now, but 2 similar mainsprings are possible alternatives.

Which other calibers use mainspring GR 4855?

According to the catalogue also in Cyma 10 - 166 KA, Cyma 147, Cyma 162, Cyma 163, Forster 2080 and 2 other calibers.

All Forster mainsprings · Mainsprings

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