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Mainspring
For Howard 12
1.25 x 0.120 x 290 x 10.0 mm
Height (H): 1.25mm
Thickness (T): 0.12mm
Total Length (TL): 290mm
Barrel Diameter (BD): 10mm
End Type: Manual
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 |
|---|---|---|
| Aurore 40 | SMALL SECOND | 8.75 |
| Seiko Y481-6430 | PULSAR CASE REFERENCE | |
| Brac 218 | 13.5 | |
| Bulova C863010 | CARAVELLE CASE REFERENCE | |
| Seiko 1020-3040 | SEIKO CASE REFERENCE | |
| Citizen 09-0620 | CITIZE CASE REFERENCE | |
| Seiko V233-5480 | SEIKO CASE REFERENCE | |
| Citizen 2710E | QUARTZ ANALOG DSS CALD | |
| Seiko Y799-4A88 | LORUS CASE. | |
| Citizen 4-320859 | CITIZEN CASE | |
| Citizen 4-450540 | CITIZE CASE REFERENCE | |
| Citizen 4-797485 | CITIZEN CASE | |
| Citizen 4-F50778 | CITIZEN CASE | |
| Citizen 44-3093 | CITIZE CASE REFERENCE | |
| Citizen 48-0223 | CITIZE CASE REFERENCE | |
| Mido 7177 | MIDO CASE REFERENCE | |
| Omega 146.0010 | OMEGA CASE USES CALIBER 920 | |
| Orient 20320 | 21,600 BPH 17JL DSS CALD | 11.5 |
| Rolex 6508 | ROLEX CASE REFERENCE | |
| Ronda 2005 | PIN LEVER-SMALL SECOND | 11.5 |
| Seiko 1020-3040 | SEIKO CASE REFERENCE | |
| Seiko 2206-4120 | SEIKO CASE REFERENCE | |
| Seiko 2Y00-5A20 | SEIKO CASE REFERENCE | |
| Seiko 5A74-2B00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 7N43-6118 | SEIKO CASE 951201 | |
| Seiko 7T42A | QUARTZ ANALOG CAL ALARM STOPWATCH TIMER 7 HANDS | 12.25 x 10.75 |
| Seiko V233-5480 | SEIKO CASE REFERENCE | |
| Seiko V401-5740 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y481-6430 | PULSAR CASE REFERENCE | |
| Seiko Y590-5359 | PULSAR CASE REFERENCE | |
| Seiko Y799-4A88 | LORUS CASE. | |
| Vacheron Constantin 21C | MAINSPRING IS .87MM X .11MM X 18-1/2" |
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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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