Mainspring for Helbros 280 B
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 4477 | 1.60 mm | 9.0 mm | 0.095 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 103.
🛒 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 4477) also fits
❓ Frequently asked questions
Which mainspring fits the Helbros 280 B?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.60 × 9.0 × 0.095 × 320 mm (GR 4477, 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 4477?
According to the catalogue also in Alpina 586, Damas 511, Durowe 28, Durowe 32, Felsa 294 and 21 other calibers.
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