Mainspring for Oris 512

Height, diameter, thickness and length

1.40 × 11.5 × 0.11 × 400 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.	Height	Diameter	Thickness	Length	Type
3703	1.40 mm	11.5 mm	0.11 mm	400 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 152.

🛒 Matching mainspring in our shop

Mainspring 1,40-10,5-0,11-40013,90 € incl. VAT *View item

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.

🔄 Alternative mainsprings

Mainspring 1,40-11,5-0,11-39511,90 € incl. VAT *View item

Mainspring 1,40-11,5-0,10-43013,90 € incl. VAT *View item

Same height, diameter equal or slightly smaller. Please check yourself before ordering.

❓ Frequently asked questions

Which mainspring fits the Oris 512?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.40 × 11.5 × 0.11 × 400 mm (GR 3703, hand-wound, normal end hook).