Mainspring for Omega 26.5 T 1

Height, diameter, thickness and length

1.30 × 10.0 × 0.12 × 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.HeightDiameterThicknessLengthType
33111.30 mm10.0 mm0.12 mm320 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 148.

🛒 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 3311) also fits

❓ Frequently asked questions

Which mainspring fits the Omega 26.5 T 1?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.30 × 10.0 × 0.12 × 320 mm (GR 3311, hand-wound, normal end hook).

Which other calibers use mainspring GR 3311?

According to the catalogue also in ETA 710, ETA 714, ETA 717 à 719, ETA 724 à 729, Girard-Perregaux 20 and 17 other calibers.

All Omega mainsprings · Mainsprings

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