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Mainspring
For Seiko 1F20-1D70
1.50 x 0.150 x 420 x 12.5 mm
GR Reference #: GR4258
Height (H): 1.5mm
Thickness (T): 0.15mm
Total Length (TL): 420mm
Barrel Diameter (BD): 12.5mm
End Type: Manual
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Assortments BERG 6606 | QTZ HAND ASST Y&W $65.00 | |
| Citizen 4-043928 | CITIZEN CASE | |
| Bulova C852283 | ||
| Citizen 39-1824 | CITIZE CASE REFERENCE | |
| Mido 3501 | MIDO CASE REFERENCE | |
| Citizen 4-043928 | CITIZEN CASE | |
| Citizen 4-168887 | CITIZEN CASE | |
| Citizen 4-168771 | CITIZE CASE REFERENCE | |
| Seiko 6349-5210 | SEIKO CASE REFERENCE | |
| Citizen 4-168887 | CITIZEN CASE | |
| Seiko 2621-0181 | SEIKO CASE REFERENCE | |
| Citizen 4-940792 | CITIZE CASE REFERENCE | |
| Citizen 4-G03278 | CITIZEN CASE | |
| Citizen 4-H05038 | CITIZEN CASE | |
| Citizen 4-S51695 | CITIZEN CASE | |
| Citizen 4-Y57101 | CITIZEN CASE | |
| Citizen 43-8073 | CITIZE CASE REFERENCE | |
| Citizen 4-H05038 | CITIZEN CASE | |
| Citizen B745M | ||
| Longines 755 | ||
| Citizen 4-S51695 | CITIZEN CASE | |
| Longines 847506 | ||
| Mido 3501 | MIDO CASE REFERENCE | |
| Omega 16072 | OMEGA CASE - USES CALIBER 210/240 | |
| Westclox W5 | 12.25 | |
| Seiko 2621-0181 | SEIKO CASE REFERENCE | |
| Seiko 5E31-6B8A | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Citizen 4-043928 | CITIZEN CASE | |
| Seiko 6349-5210 | SEIKO CASE REFERENCE | |
| Seiko 6730-5080 | SEIKO CASE REFERENCE | |
| Seiko 7N32-5A30 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 7T62-0BF0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 9029-5000 | SEIKO CASE REFERENCE | |
| Tissot 2142 | 21,600 BPH-17 JL-INCA-ADJ-STUD HOLDER | 7.75 |
| Westclox W5 | 12.25 | |
| Zenith 480 | 21600 BPH-17 JL-INCA-DSS | 7.75 |
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Similar Mainspring Listing
This mainspring is similar to the mainspring used by the following movements. A similar mainspring differs slightly in one or more dimensions but may possibly still work as a replacement. When values differ the exact value is shown brackets for reference:
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