Mainspring for Felsa 204
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 4100 | 1.50 mm | 8.0 mm | 0.09 mm | 280 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.
đź›’ Matching mainspring in our shop
🔄 Alternative mainsprings
Same height, diameter equal or slightly smaller. Please check yourself before ordering.
đź”— According to the catalogue, the same mainspring (GR 4100) also fits
âť“ Frequently asked questions
Which mainspring fits the Felsa 204?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 8.0 × 0.09 × 280 mm (GR 4100, 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 4100?
According to the catalogue also in Aurore 149, Buren 975, Cortebert 571, Felsa 201, Felsa 229 and 9 other calibers.
🛠️ For the workshop
Watch Crystal Sternkreuz ATCR, Domed, Reinforced with Chrome Ring – NOS10,90 € incl. VAT *View item ›
Pocket Watch Key Set, 14 Pieces, Brass, with Key Chain12,90 € incl. VAT *View item ›
Watch Gasket Hytrel I-Ring Seal for Flat Round Mineral Crystals 16-40 mm, H: 0.6, 0.8, 0.85, 1.25, 1.7 mm5,95 € – 9,95 € incl. VAT *View item ›