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Mainspring
For ETA 821
1.30 x 0.110 x 320 x 10.0 mm
Height (H): 1.3mm
Thickness (T): 0.11mm
Total Length (TL): 320mm
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 |
|---|---|---|
| Armitron 20/2001 | ARMITRON CASE | |
| Aurore 102 | 5.75 x 8.5 | |
| Bidlingmaier 103 | REGULAR AND SWEEP SECOND (13L MVT IS AUTOMATIC) | 10.5 |
| Seiko 2P21-5210 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Bulova C877131 | CARAVE CASE REFERENCE | |
| Bulova C896 | ||
| Bulova C960354 | BULOVA CASE REFERENCE | |
| Citizen 4-281187 | CITIZEN CASE | |
| Citizen 31-5028 | CITIZE CASE REFERENCE | |
| Seiko 1320-5730 | SEIKO CASE REFERENCE | |
| Citizen 32-1702 | CITIZE CASE REFERENCE | |
| Citizen 34-3749 | CITIZE CASE REFERENCE | |
| Citizen 39-6184 | CITIZE CASE REFERENCE | |
| Citizen 4-013611 | CITIZEN CASE | |
| Citizen 4-155009 | CITIZEN CASE | |
| Citizen 4-281187 | CITIZEN CASE | |
| Citizen 4-286979 | CITIZEN CASE | |
| Citizen 4-370341 | CITIZEN CASE | |
| Citizen 4-691148 | CITIZE CASE REFERENCE | |
| Citizen 4-798244 | CITIZEN CASE | |
| Citizen 4-G30801 | CITIZEN CASE | |
| Seiko 1F20-6D09 | SEIKO CASE REFERENCE | |
| Citizen 4-H09131 | CITIZEN CASE | |
| Citizen 4-Y56378 | CITIZE CASE REFERENCE | |
| Eterna 600 | REGULAR AND SWEEP SECOND | 10.5 |
| Citizen 43-9169 | CITIZE CASE REFERENCE | |
| Citizen 50-3142 | CITIZE CASE REFERENCE | |
| Citizen 98-0391 | CITIZE CASE REFERENCE | |
| Omega 791.0881 | OM CS REF:OMEGA SAYS USE CS#591.0323 | |
| Citizen AY3060 | CITIZE CASE REFERENCE | |
| Eterna 1445K | 7.75 | |
| Eterna 600 | REGULAR AND SWEEP SECOND | 10.5 |
| Peseux 88 | 7.75 | |
| Felsa 360 | SWEEP SECOND | 8.75 |
| Hampden 8/0 | AMERICAN POCKET WATCH MARY JANE / JOSEPHINE | |
| Hanhart 786 | BM 86 TIMER -85 | 19.5 |
| Seiko 7019-7410 | SEIKO CASE REFERENCE | |
| Illinois 601 16/S | AMERICAN P/W | |
| Seiko 6730-5090 | SEIKO CASE REFERENCE | |
| IWC 98 | ||
| Longines WT1147-045 | LONGIN CASE REFERENCE | |
| Lucien Piccard 22 | DSS INCA | |
| MSR H66 | 21600 BPH DSS AUTO CALD | |
| MSR T1 | SEE WIT 11TSA | 11.25 |
| Omega 791.0881 | OM CS REF:OMEGA SAYS USE CS#591.0323 | |
| Omega 161.0005 | OMEGA CASE USES CALIBER 671 | |
| Omega 18160 | OMEGA CASE USES CALIBER 440 | |
| Citizen 34-3749 | CITIZE CASE REFERENCE | |
| Omega 3844 | OMEGA CASE USES CALIBER 300 | |
| Felsa 360 | SWEEP SECOND | 8.75 |
| Omega 7376 | OMEGA CASE USES CALIBER 1365 | |
| Omega 791.0881 | OM CS REF:OMEGA SAYS USE CS#591.0323 | |
| Peseux 88 | 7.75 | |
| Seiko 1000-0080 | SEIKO CASE | |
| Omega 161.0005 | OMEGA CASE USES CALIBER 671 | |
| Seiko 1000-7410 | SEIKO CASE REFERENCE | |
| Citizen 4-H09131 | CITIZEN CASE | |
| Seiko 1320-5730 | SEIKO CASE REFERENCE | |
| Seiko 1F20-6D09 | SEIKO CASE REFERENCE | |
| Seiko 2220-3470 | SEIKO CASE REFERENCE | |
| Seiko 2621-5000 | SEIKO CASE REFERENCE | |
| Seiko 2706-0170 | SEIKO CASE REFERENCE | |
| Seiko 5P31-9A00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 2P21-0D10 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 2P21-5210 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 4N20-0941 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Aurore 102 | 5.75 x 8.5 | |
| Seiko 5M22-8A00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5P31-9A00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5Y94-5010 | SEIKO CASE | |
| Seiko 5Y94-7029 | SEIKO CASE REFERENCE | |
| Seiko 6349-549A | SEIKO CASE REFERENCE | |
| Seiko V810-0960 | PULSAR CASE | |
| Seiko 6430-5170 | SEIKO CASE REFERENCE | |
| Seiko 6730-5090 | SEIKO CASE REFERENCE | |
| Seiko 7005-8010 | SEIKO CASE REFERENCE | |
| Seiko 7019-7410 | SEIKO CASE REFERENCE | |
| Seiko V803-0110 | LORUS CS REF;NO CBGSKT LSTD | |
| Seiko 8N51-6000 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1320-5730 | SEIKO CASE REFERENCE | |
| Seiko V182-0A20 | SEIKO CASE 971129 | |
| Seiko V533-8C00 | PUL | |
| Seiko V601-8040 | ||
| Seiko V707-6110 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V801-0120 | ||
| Seiko V803-0110 | LORUS CS REF;NO CBGSKT LSTD | |
| Seiko V810-0960 | PULSAR CASE | |
| Seiko Y573-8040 | LORUS CASE REFERENCE | |
| Citizen 50-3142 | CITIZE CASE REFERENCE | |
| Armitron 20/2001 | ARMITRON CASE | |
| Citizen 4-286979 | CITIZEN CASE | |
| Seiko 6349-549A | SEIKO CASE REFERENCE |
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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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