Mainspring for AS 457
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 2901 | 1.20 mm | 8.0 mm | 0.095 mm | 260 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 6.
🛒 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 2901) also fits
❓ Frequently asked questions
Which mainspring fits the AS 457?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.20 × 8.0 × 0.095 × 260 mm (GR 2901, 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 2901?
According to the catalogue also in Bifora 91.91-1,91SC,91SC/I, Bulova 6 PG, Bulova 6 R, Eterna 246, Frenca 146 and 4 other calibers.
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