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Mainspring for Femga 535 B Calendrier
Height, diameter, thickness and length
1.40 Ă— 9.5 Ă— 0.105 Ă— 320 mmheight Ă— diameter Ă— thickness Ă— 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.
đź“Ź Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3681 | 1.40 mm | 9.5 mm | 0.105 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 80.
đź›’ Matching mainspring in our shop
No mainspring with exactly these dimensions in our shop at the moment.
🔄 Alternative mainsprings
Same height, diameter equal or slightly smaller. Please check yourself before ordering.
đź”— According to the catalogue, the same mainspring (GR 3681) also fits
- Femga 152 anc
- Femga 520 B
- FHF 51
- FHF 76 nouveau
- FHF 76-2
- FHF 81 - 81 N
- FHF 81-2
- FHF 761-2
- FHF 762-2
- FHF 763
- FHF 763-2
- FHF 811
- FHF 811-2
- FHF 814-815
- FHF 2634
- FHF 2696
- FHF 6424 10 1/2"
- FHF 6466
- Geneva 40
- Geneva 41
- Geneva 48
- Geneva 50
- Geneva 51
- Geneva 57
- Geneva 70
- Geneva 71
- Girard-Perregaux 91
- Gruen 920 SS
- Marc Favre 175
- Montilier 260
- Montilier 261
- Movado 206 C
- Movado 260/260 M
- Pierce 135
- Ronda 1013
- Ronda 1113
- Ronda 1213
- Ronda 1223 mouv
- Ronda 1313
- Silvana 1067
- Wyler WG 37
- Wyler WG 311
- Wyler WG 313
- Wyler WH 36
âť“ Frequently asked questions
Which mainspring fits the Femga 535 B Calendrier?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 9.5 × 0.105 × 320 mm (GR 3681, 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 3681?
According to the catalogue also in Femga 152 anc, Femga 520 B, FHF 51, FHF 76 nouveau, FHF 76-2 and 39 other calibers.
🛠️ For the workshop
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