Mainspring for Gruen 505
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 3845 | 1.40 mm | 15.0 mm | 0.18 mm | 440 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 96.
đź›’ Matching mainspring in our shop
🔄 Alternative mainsprings
Same height, diameter equal or slightly smaller. Please check yourself before ordering.
đź”— According to the catalogue, the same mainspring (GR 3845) also fits
âť“ Frequently asked questions
Which mainspring fits the Gruen 505?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 15.0 × 0.18 × 440 mm (GR 3845, hand-wound, normal end hook).
Is this mainspring available in the shop?
An exact match is not in stock right now, but 1 similar mainsprings are possible alternatives.
Which other calibers use mainspring GR 3845?
According to the catalogue also in Bulova 17 H, Doxa 17" 20/12, Doxa 20/12 Anc, Martel 300 1/10, Martel 300 1/100 and 2 other calibers.
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