Mainspring for Osco 72
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3613 | 1.40 mm | 7.0 mm | 0.085 mm | 220 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 153.
🛒 Matching mainspring in our shop
🔄 Alternative mainsprings
Mainspring 1,40-7-0,09-2108,99 € incl. VAT *View item
Mainspring 1,4x6,8x0,08x23010,90 € incl. VAT *View item
Mainspring 1,40-7,0-0,08-22510,90 € incl. VAT *View itemSame height, diameter equal or slightly smaller. Please check yourself before ordering.
🔗 According to the catalogue, the same mainspring (GR 3613) also fits
❓ Frequently asked questions
Which mainspring fits the Osco 72?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 7.0 × 0.085 × 220 mm (GR 3613, hand-wound, normal end hook).
Is this mainspring available in the shop?
An exact match is not in stock right now, but 3 similar mainsprings are possible alternatives.
Which other calibers use mainspring GR 3613?
According to the catalogue also in Diehl 158, Junghans 71, Junghans 73, Roamer 297, Roamer 306 and 20 other calibers.
🛠️ For the workshop
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 ›
Red Teflon Hard Gasket For Watch Caseback Multi Size Listing Ø 16-42. Suitable for many brand watches such as Omega, Tissot, Junghans5,95 € – 7,95 € incl. VAT *View item ›
Luminous Pigment for Watch Hands – Swiss Watch Lume, Luminova22,95 € – 52,90 € incl. VAT *View item ›