Mainspring for Cortebert 720

Height, diameter, thickness and length

1.50 × 11.0 × 0.13 × 360 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.HeightDiameterThicknessLengthType
41981.50 mm11.0 mm0.13 mm360 mmHand-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 42.

🛒 Matching mainspring in our shop

We do not currently have a mainspring with exactly these dimensions in our shop. Feel free to write to us – we can often still find a suitable spring. Contact form · All mainsprings in our shop

🔗 According to the catalogue, the same mainspring (GR 4198) also fits

❓ Frequently asked questions

Which mainspring fits the Cortebert 720?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 11.0 × 0.13 × 360 mm (GR 4198, hand-wound, normal end hook).

Which other calibers use mainspring GR 4198?

According to the catalogue also in Aurore 4820, Cyma 13", Minerva 13 RFM, Minerva 13 RFV, Minerva 13-20 chrono and 7 other calibers.

All Cortebert mainsprings · Mainsprings

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