Mainspring for Femga 500
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 4736 | 1.65 mm | 9.0 mm | 0.10 mm | 300 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 4736) also fits
- A. H. S 40 à 43
- A. H. S 70
- A. H. S 72 -
- AS 856
- Bulla 46 juill
- Bulla 946
- Buren 410
- Buren 411
- Cortebert 661
- Cortebert 663
- Ebosa 510
- Femga 500 C
- Femga 502
- Helbros 83
- Helbros . 107
- Junghans 80
- Junghans 80/3
- Lorsa 236
- Lorsa 237 TC
- Lorsa 622 TC
- Record 10 1/2
- Urofa 55
- Urofa 551
- Westfield 10 WZ
- Winton 5
- Winton 14
- Winton 16
- Winton 16-5
- Winton 16-8
- Winton 28
- Winton 28-8
- Winton 32
- Winton 32-8
- Winton 142
- Winton 142-17
❓ Frequently asked questions
Which mainspring fits the Femga 500?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.65 × 9.0 × 0.10 × 300 mm (GR 4736, 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 4736?
According to the catalogue also in A. H. S 40 à 43, A. H. S 70, A. H. S 72 -, AS 856, Bulla 46 juill and 30 other calibers.
🛠️ For the workshop
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