Mainspring for Jaeger-LeCoultre 496 NR

Height, diameter, thickness and length

1.20 Ă— 5.5 Ă— 0.055 Ă— 200 mmheight Ă— diameter Ă— thickness Ă— 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
28371.20 mm5.5 mm0.055 mm200 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 109.

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