Mainspring for Felsa 4550-4552 11 1/2
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 2963 | 1.20 mm | 10.0 mm | 0.115 mm | 340 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 80.
🛒 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 2963) also fits
❓ Frequently asked questions
Which mainspring fits the Felsa 4550-4552 11 1/2?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 10.0 × 0.115 × 340 mm (GR 2963, 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 2963?
According to the catalogue also in FE 3601, FE 3602, Felsa 4450, Felsa 4452, Felsa 4456 and 16 other calibers.
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