Mainspring for Felsa 157
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3500 | 1.35 mm | 9.0 mm | 0.09 mm | 320 mm | Hand-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 76.
🛒 Matching mainspring in our shop
🔄 Alternative mainsprings
Same height, diameter equal or slightly smaller. Please check yourself before ordering.
🔗 According to the catalogue, the same mainspring (GR 3500) also fits
❓ Frequently asked questions
Which mainspring fits the Felsa 157?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.35 × 9.0 × 0.09 × 320 mm (GR 3500, hand-wound, normal end hook).
Is this mainspring available in the shop?
An exact match is not in stock right now, but 1 similar mainsprings are possible alternatives.
Which other calibers use mainspring GR 3500?
According to the catalogue also in Cyma 364 K, Cyma 365 K, Felsa 63, Felsa 137, Felsa 170 and 2 other calibers.
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