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Mainspring
For Seiko 7N42-0FK0
1.45 x 0.085 x 240 x 7.0 mm
Height (H): 1.45mm
Thickness (T): 0.085mm
Total Length (TL): 240mm
Barrel Diameter (BD): 7mm
End Type: Auto
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
GR Approximation
This mainspring does not have a GR reference. The following GR mainsprings are the closest fit, when values differ the exact value is shown brackets for reference:
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Eterna 729 | QTZ | 390 |
| Belstaff 12G1B2 | 21600 BPH-17JL-AUTO-CALD | 12.5 |
| Bulova C837054 | ||
| Bulova C837224 | ||
| International Durowe 450/3 | DSS-CA6ENDAR-DAY-DATE 18000 BPH | 10.5 |
| Bulova L148 | BULOVA 5BD | |
| Citizen 4-711475 | CITIZEN CASE | |
| Citizen 34-5466 | CITIZE CASE REFERENCE | |
| Citizen 4-215273 | CITIZEN CASE | |
| Citizen 4-632214 | CITIZEN CASE | |
| Citizen 4-650301 | CITIZEN CASE | |
| Omega 1701 | OMEGA CASE USES CALIBER | |
| Citizen 4-711475 | CITIZEN CASE | |
| Citizen 4-796039 | CITIZEN CASE | |
| Citizen 4-F42422 | CITIZEN CASE | |
| Eterna 729 | QTZ | 390 |
| Citizen 4-F91296 | CITIZEN CASE | |
| Citizen 4-K01345 | CITIZEN CASE | |
| Citizen 4-650301 | CITIZEN CASE | |
| Citizen 4-S30370 | CITIZEN CASE | |
| Elgin 336 | ||
| Eterna 166 | 19 | |
| Eterna 729 | QTZ | 390 |
| Hanhart 56 | TIMER BM 86 | 19.5 |
| International Durowe 450/3 | DSS-CA6ENDAR-DAY-DATE 18000 BPH | 10.5 |
| Jaeger Lecoultre 245 | ||
| Kienzle 606C/700 | MONOLECTRIC CLOCK | |
| Longines 3266-428 | LONGIN CASE REFERENCE | |
| Omega 162.0059 | OMEGA CASE - USES CALIBER 1022 | |
| Seiko V243-0100 | LORUS CASE REFERENCE | |
| Omega 166.0010-SP | OMEGA CASE - USES CALIBER 562/565 | |
| Omega 166.0017 | OMEGA CASE - USES CALIBER 562 | |
| Wittnauer 00123 | MECHANICAL SEIKO | |
| Omega 1701 | OMEGA CASE USES CALIBER | |
| Omega 291.001 | OMEGA CASE USES CALIBER 1353 | |
| Omega 311.077 | OMEGA CASE USES CALIBER | |
| Citizen 4-650301 | CITIZEN CASE | |
| Omega 591.0323 | OMEGA CASE REFERENCE | |
| Pulsar Y557A | QUARTZ-ANALOG-DSS | |
| Roamer 478 | 21600 BPH DSS AUTO CALENDAR DAY DATE SHOCK | 11.5 |
| Ronda 2135 | SS CAL | 11.5 |
| Seiko 1N00-6G20 | SEIKO CASE 971129 | |
| Seiko 2E20-7330 | SEIKO CASE 951201 | |
| Citizen 4-632214 | CITIZEN CASE | |
| Seiko 2E20-L968 | ||
| Seiko 3703-7000 | SEIKO CASE REFERENCE | |
| Seiko 4N00-5241 | SEIKO CASE. | |
| Seiko 5E31-5010 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Bulova L148 | BULOVA 5BD | |
| Seiko 5Y23-7A81 | SEIKO CASE REFERENCE | |
| Eterna 166 | 19 | |
| Seiko 5Y39-7070 | ||
| Seiko 6309-5500 | SEIKO CASE REFERENCE | |
| Seiko 6618A | 18000 BPH-17 JL-W/O SEC.-SHOCK-ADJ-STUD HOLDER | 10.5 |
| Seiko 6923-512A | SEIKO CASE REFERENCE | |
| Seiko 7430-5110 | SEIKO CASE REFERENCE | |
| Citizen 4-K01345 | CITIZEN CASE | |
| Seiko 7N01-6G50 | SEIKO CASE | |
| Citizen 4-F91296 | CITIZEN CASE | |
| Seiko L423-4050 | SEIKO CASE REFERENCE | |
| Seiko V243-0100 | LORUS CASE REFERENCE | |
| Seiko V321-5010 | SEIKO CASE REFERENCE | |
| Seiko 2E20-L968 | ||
| Seiko V401-5441 | SEIKO CASE 951201 | |
| Smith EP 14 | 8 DAY | |
| Seiko V700-6A20 | SEIKO CASE 08/12/98 | |
| Seiko V701-5060 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V722-5A00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Smith EP 14 | 8 DAY | |
| Wittnauer 00123 | MECHANICAL SEIKO | |
| Zenith 49.6 | QUARTZ-RESONATOR-DSS-CAL | 12.5 |
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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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