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Mainspring for ETA 1287
Height, diameter, thickness and length
1.50 × 9.0 × 0.105 × 300 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 |
|---|---|---|---|---|---|
| 4134 | 1.50 mm | 9.0 mm | 0.105 mm | 300 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 67.
🛒 Matching mainspring in our shop
No mainspring with exactly these dimensions in our shop at the moment.
🔄 Alternative mainsprings
Mainspring 1,50-9,0-0,10-31010,90 € incl. VAT *View itemMainspring 1,50-9,0-0,11-28010,90 € incl. VAT *View itemSame height, diameter equal or slightly smaller. Please check yourself before ordering.
🔗 According to the catalogue, the same mainspring (GR 4134) also fits
- AS 521
- Benrus BH
- Benrus BK
- Benrus EO
- Bifora 102
- Bifora 103 USM
- Bifora 812
- Cluses 240
- Doxa 97/98
- Elgin 829
- Enicar 982
- Enicar 1012
- ETA 1078 à 1089
- ETA 1093 à 1098
- ETA 1140 à 1149
- ETA 1152 à 1159
- ETA 1174 à 1183
- Eterna 1079 H 11 1/2
- Girard-Perregaux 46
- Girard-Perregaux 48
- Hamilton 654
- Hamilton 671
- Helbros 73H. 76H
- Helbros 77H
- Kasper 850
- Lavina 150 SC
- Lunesa 11 72" L 33
- Osco 1062 CLD
- Osco 1300. 1400
- Roamer 351
- Roamer 352
- Roamer 360
- Roamer 364
- Roamer 371
- Roamer 372
- Roamer 400
- Roamer 401
- Roamer 416
- Rolex 1156
- Silvana 1080
- Silvana 1081
- Tissot 780 Mouv
- Tudor 1182
- Winton 43
- Wittnauer 10 ES
- Wittnauer 11 ES
- Wittnauer 11 ESK
- Wyler WG 28
- Zodiac 1093
- Zodiac 1094
❓ Frequently asked questions
Which mainspring fits the ETA 1287?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 9.0 × 0.105 × 300 mm (GR 4134, hand-wound, normal end hook).
Is this mainspring available in the shop?
An exact match is not in stock right now, but 2 similar mainsprings are possible alternatives.
Which other calibers use mainspring GR 4134?
According to the catalogue also in AS 521, Benrus BH, Benrus BK, Benrus EO, Bifora 102 and 45 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 ›