Mainspring for ETA 900 Ă  903

Height, diameter, thickness and length

1.55 Ă— 9.0 Ă— 0.105 Ă— 280 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.

đź“Ź Mainspring dimensions

GR no.HeightDiameterThicknessLengthType
43901.55 mm9.0 mm0.105 mm280 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 66.

đź›’ Matching mainspring in our shop

No mainspring with exactly these dimensions in our shop at the moment.

🔄 Alternative mainsprings

Mainspring 1,55-8,7-0,10-295 #1 Durchmesser stimmtMainspring 1,55-8,7-0,10-295 #1 Durchmesser stimmt11,90 € incl. VAT *View itemMainspring 1,55-9,0-0,10-285Mainspring 1,55-9,0-0,10-28511,90 € incl. VAT *View itemMainspring 1,55-9,0-0,10-285Mainspring 1,55-9,0-0,10-28511,90 € incl. VAT *View itemMainspring 1,55-9,0-0,10-280Mainspring 1,55-9,0-0,10-28011,90 € incl. VAT *View item

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

đź”— According to the catalogue, the same mainspring (GR 4390) also fits

… and 2 more calibers

All ETA mainsprings · Mainsprings

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