Mainspring for Alpina 751
Height, diameter, thickness and length
1.50 × 9.0 × 0.09 × 320 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 |
|---|---|---|---|---|---|
| 4102 | 1.50 mm | 9.0 mm | 0.09 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 2.
🛒 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.
🔗 According to the catalogue, the same mainspring (GR 4102) also fits
❓ Frequently asked questions
Which mainspring fits the Alpina 751?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 9.0 × 0.09 × 320 mm (GR 4102, 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 4102?
According to the catalogue also in EB 1431. 1431 N, Frenca 101.
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