Mainspring for Gruen 270 SS
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 2780 | 1.15 mm | 6.5 mm | 0.08 mm | 200 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 95.
đź›’ Matching mainspring in our shop
Only mainsprings with exactly the same height, thickness and length are shown; the diameter is equal or up to 1 mm smaller – a smaller spring settles in the barrel.
đź”— According to the catalogue, the same mainspring (GR 2780) also fits
âť“ Frequently asked questions
Which mainspring fits the Gruen 270 SS?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.15 × 6.5 × 0.08 × 200 mm (GR 2780, hand-wound, normal end hook).
Is this mainspring available in the shop?
Yes, Master Watch Parts currently has 1 matching mainsprings in stock.
Which other calibers use mainspring GR 2780?
According to the catalogue also in Eterna 1031, Eterna 1033 Ă 1034 S, Forster 400, Forster 412, Forster 420 and 10 other calibers.
🛠️ For the workshop
Watch Crystal Sternkreuz ATCR, Domed, Reinforced with Chrome Ring – NOS10,90 € incl. VAT *View item ›
Pocket Watch Key Set, 14 Pieces, Brass, with Key Chain12,90 € incl. VAT *View item ›
Watch Gasket Hytrel I-Ring Seal for Flat Round Mineral Crystals 16-40 mm, H: 0.6, 0.8, 0.85, 1.25, 1.7 mm5,95 € – 9,95 € incl. VAT *View item ›