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Mainspring
For Ultra 18.5
1.20 x 0.100 x 320 x 9.0 mm
GR Reference #: GR2921
Height (H): 1.2mm
Thickness (T): 0.1mm
Total Length (TL): 320mm
Barrel Diameter (BD): 9mm
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 |
|---|---|---|
| Benrus H | 4.75 x 11 | |
| Bulova C3779 | BULOVA CASE REFERENCE | |
| Bulova C869757 | ||
| Bulova C976600 | ||
| Bulova T3324 | BUL 11BSACB | |
| Citizen 4-013433 | CITIZEN CASE | |
| Citizen 4-043405 | CITIZEN CASE | |
| Citizen 4-107381 | CITIZEN CASE | |
| Citizen 4-164741 | CITIZEN CASE | |
| Citizen 4-226208 | CITIZEN CASE | |
| Citizen 4-268946 | CITIZEN CASE | |
| Citizen 4-403827 | CITIZEN CASE | |
| Citizen 4-676645 | CITIZE CASE REFERENCE | |
| Citizen 4-954483 | CITIZEN CASE | |
| Citizen 4-E61694 | CITIZEN CASE | |
| Citizen 4-H26043 | CITIZEN CASE REFERENCE | |
| Citizen 4-R04630 | CITIZEN CASE | |
| Citizen 4-S038561 | CITIZEN CASE REFERENCE | |
| Citizen 4-S42611 | CITIZEN CASE | |
| Citizen 44-2658 | CITIZE CASE REFERENCE | |
| Citizen 4800A | ||
| Citizen SD2062 | CITIZE CASE REFERENCE | |
| Election MARVIN 384 | MARVIN 384 | |
| Elgin 717 | ELGIN (MINUTE DIAL REQUIRES USE OF ORIGINAL HUB) | |
| Enicar 161 | 21,600BPH DSS CAL W/CORR SHOCK ADJ | 11.75 |
| Eterna 1489K | 21600 BPH-KIF ULTRAFLEX-DSS-AUTO-CALD | 13 |
| France Ebauches 5124 | QUARTZ ANALOG NO SEC. | 5.5 x 6.75 |
| Gruen UT 6503 | UNITAS 6503 | 6497 |
| Mido 8015 | MIDO CASE REFERENCE | |
| Omega 18790 | OMEGA CASE USES CALIBER 440 | |
| Otero 441 | DSS CAL | 10.5 |
| Seiko 1F21-0F40 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1N00-0J6A | SEIKO CASE 951201 | |
| Seiko 2639-5039 | SEIKO CASE REFERENCE | |
| Seiko 2A23-5130 | SEIKO CASE REFERENCE | |
| Seiko 4S29-5000 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5626-7041 | SEIKO CASE REFERENCE | |
| Seiko 7009-8100 | SEIKO CASE REFERENCE | |
| Seiko 7D46-0AA0 | SEIKO CASE REFERENCE | |
| Seiko H801-7079 | SEIKO CASE REFERENCE | |
| Seiko V254-X002. | PULSAR CASE MODEL PHS06AX | |
| Seiko V701-6390 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V782-0830 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko W650-4070 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y480-7860 | PULSAR CASE REFERENCE | |
| Seiko Y563-7029 | PULSAR CASE REFERENCE | |
| Seiko Y975-6A20 | LORUS CASE REFERENCE | |
| 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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