Mainspring for Winton 731
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3201 | 1.30 mm | 6.5 mm | 0.08 mm | 220 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 200.
🛒 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 3201) also fits
- AS 437
- AS 1138
- AS 1150
- AS 1165
- Benrus AZ
- Certina 15-02 13
- Certina 15-021
- Doxa 1072
- Elgin 853
- ETA 1195
- FHF 35 7 3/4
- Forster 70 à 72
- Girard-Perregaux 29
- Girard-Perregaux 67
- Girard-Perregaux 73
- Gruen 30 F
- Gruen 677
- Gruen 905
- Gruen 907
- Lavina 480
- Rayville 480
- Rayville R 48
- Silvana 7365
- Winton 73-8
- Winton 732
- Wyler WI 20
- Zodiac 1170
❓ Frequently asked questions
Which mainspring fits the Winton 731?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 6.5 × 0.08 × 220 mm (GR 3201, 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 3201?
According to the catalogue also in AS 437, AS 1138, AS 1150, AS 1165, Benrus AZ and 22 other calibers.
🛠️ For the workshop
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