Mainspring for Cyma 3
Height, diameter, thickness and length
1.20 × 13.5 × 0.17 × 400 mmheight × diameter × thickness × length
1.20 × 8.5 × 0.11 × 280 mmheight × diameter × thickness × length
Note: We have transcribed this information to the best of our knowledge from the Générale Ressorts mainspring catalogue (GR 2, 1974). All information has been carefully checked but is provided without guarantee. Please check yourself before fitting that the mainspring fits, in particular height, diameter, thickness and length.
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3032 | 1.20 mm | 13.5 mm | 0.17 mm | 400 mm | Hand-wound, normal end hook |
| 2948 | 1.20 mm | 8.5 mm | 0.11 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 42, 43.
🛒 Matching mainspring in our shop
We do not currently have a mainspring with exactly these dimensions in our shop. Feel free to write to us – we can often still find a suitable spring. Contact form · All mainsprings in our shop
🔗 According to the catalogue, the same mainspring (GR 2948) also fits
❓ Frequently asked questions
Which mainspring fits the Cyma 3?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 13.5 × 0.17 × 400 mm (GR 3032, hand-wound, normal end hook); 1.20 × 8.5 × 0.11 × 280 mm (GR 2948, hand-wound, normal end hook).
Which other calibers use mainspring GR 2948?
According to the catalogue also in Cyma 10 1/2" - cal. 1, Forster 1197, Gruen 825 à 827, Mido 177, Rolex 10 1/2 AN and 3 other calibers.
🛠️ For the workshop
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