Mainspring for Tudor 1301 Aut

Height, diameter, thickness and length

1.45 × 7.5 × 0.085 × 240 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
3930-X	1.45 mm	7.5 mm	0.085 mm	240 mm	Automatic, with welded slipping bridle

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 181.

Mainspring for Tudor 1301 Aut

📏 Mainspring dimensions

🔗 According to the catalogue, the same mainspring (GR 3930-X) also fits

Important Pages

Shipping costs

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