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Mainspring
For Seiko 2P20-5720
1.45 x 0.085 x 240 x 7.5 mm
GR Reference #: GR3930X
Height (H): 1.45mm
Thickness (T): 0.085mm
Total Length (TL): 240mm
Barrel Diameter (BD): 7.5mm
End Type: Auto
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 |
|---|---|---|
| Alpina 571 C | DSS AUTO CAL INCA | 11.5 |
| Citizen 4-947011 | CITIZEN CASE | |
| Bettlach 1495 | PIN LEVER-SWEEP SECOND | 11.5 |
| Bulova C877234 | BULOVA CASE REFERENCE | |
| Bulova C879006 | BULOVA CASE REFERENCE | |
| Seiko 4206-5621 | SEIKO CASE REFERENCE | |
| Bulova M252 | BULOVA CASE REFERENCE | |
| Bulova N510 | BULOVA CASE REFERENCE | |
| Citizen 30-2252 | CITIZE CASE REFERENCE | |
| Jaeger Lecoultre 3072-916 | LECOULTRE CASE REFERENCE | |
| Citizen 4-274504 | CITIZEN CASE | |
| Mido 1179 | 28,800 BPH AUTO SWEEP SECOND DAY DATE | 11.5 |
| Citizen 4-325010 | CITIZEN CASE | |
| Citizen 4-661974 | CITIZE CASE REFERENCE | |
| Citizen 4-326407 | CITIZEN CASE | |
| Citizen 4-409051 | CITIZEN CASE | |
| Citizen 4-325010 | CITIZEN CASE | |
| Citizen 4-451813 | CITIZEN CASE | |
| Citizen 4-490673 | CITIZEN CASE | |
| Citizen 4-650786 | CITIZEN CASE | |
| Citizen 4-661974 | CITIZE CASE REFERENCE | |
| Citizen 4-947011 | CITIZEN CASE | |
| Citizen 4-985354 | CITIZE CASE REFERENCE | |
| Citizen 4-F45588 | CITIZEN CASE | |
| Citizen 4-G13656 | CITIZEN CASE | |
| Citizen 4-K11944 | CITIZEN CASE REFERENCE | |
| Citizen 4-L02575 | CITIZEN CASE | |
| Citizen 4-S59980 | CITIZEN CASE STEMS 1010 USE 065-471 1012 USE 065-495 | |
| Citizen 4-Y65758 | CITIZEN CASE | |
| Citizen 8821B | QUARTZ-ANALOG-SS-CALD. (DAY-DATE)-18 | 11.5 |
| Election 675 | 21,600 BPH | 10.5 |
| ETA 2839 | 36,000 BPH-DSS-STOP DEVICE-AUTO | 11.5 |
| Jaeger Lecoultre 3072-916 | LECOULTRE CASE REFERENCE | |
| Kasper 700 | SWEEP SECOND | 10.5 |
| Longines 3125-410 | LONGIN CASE REFERENCE | |
| Longines 4058 | ||
| Longines CJ1181-961 | LONGIN CASE REFERENCE | |
| Marvin 320 | 8.75 | |
| Mido 1179 | 28,800 BPH AUTO SWEEP SECOND DAY DATE | 11.5 |
| Mido 3817 | MIDO CASE REFERENCE | |
| Omega 16495 | OMEGA CASE - USES CALIBER 483/580 | |
| Omega 1734 | OMEGA CASE USES CALIBER 700 | |
| Omega 18472 | OMEGA CASE USES CALIBER 483 | |
| Omega 2687 | OMEGA CASE USES CALIBER 260/283 | |
| Omega 511.193 | OMEGA CASE USES CALIBER 620 | |
| Omega 596.1201 | OMEGA CASE USES CALIBER 1424 | |
| Omega 611 | 17 JL. SW. SEC. CALENDAR ADJ. REGULATOR | 12 |
| Omega 7146 | OMEGA CASE USES CALIBER 440 | |
| Seiko 0703-7100 | SEIKO CASE REFERENCE | |
| Seiko 1F21-0K20 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1F21-1A40 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 2202-0080 | SEIKO CASE REFERENCE | |
| Seiko 2F50-0209 | SEIKO CASE REFERENCE | |
| Seiko 2P20-0F00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 4206-5621 | SEIKO CASE REFERENCE | |
| Seiko 5Y22-6A20 | SEIKO CASE REFERENCE | |
| Seiko 6429-5079 | SEIKO CASE | |
| Seiko 7009-206K | SEIKO CASE REFERENCE | |
| Seiko 7N42-0BY0 | SEIKO CASE REFERENCE COSERVE 2005 | |
| Seiko 8F32-0080 | SEIKO CASE REFERENCE | |
| Seiko A718-5030 | SEIKO CASE REFERENCE | |
| Seiko B532-8B00 | PULSAR CASE REFERENCE | |
| Seiko H601-0010 | SEIKO CASE | |
| Seiko V235-5340 | ||
| Standard 22 | SWEEP SECOND | |
| Tissot 28.5-21 | AUTOMATIC-SWEEP SECOND-INCABLOC | 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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