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Mainspring
For Unitas 6421
1.40 x 0.100 x 340 x 9.5 mm
GR Reference #: GR3666
Height (H): 1.4mm
Thickness (T): 0.1mm
Total Length (TL): 340mm
Barrel Diameter (BD): 9.5mm
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 |
|---|---|---|
| A. Schild 964 | ||
| Citizen 4-H05178 | CITIZEN CASE | |
| Bulova C4056 | BULOVA CASE REFERENCE | |
| Bulova C867035 | BULOVA CASE REFERENCE | |
| Bulova C877357 | BULOVA CASE REFERENCE | |
| Bulova N518 | CARAVELLE CASE REFERENCE | |
| Citizen 1802 | 11.5 | |
| Citizen 4-150562 | CITIZEN CASE | |
| Citizen 4-265475 | CITIZEN CASE | |
| Seiko Y590-5390 | PULSAR CASE REFERENCE | |
| Citizen 4-291832 | CITIZEN CASE | |
| Citizen 4-400569 | CITIZEN CASE | |
| Citizen 4-770293 | CITIZEN CASE | |
| Citizen 4-941993 | CITIZEN CASE | |
| Citizen 4-946847 | CITIZEN CASE | |
| Citizen 4-953762 | CITIZEN CASE | |
| Citizen 4-E68257 | CITIZEN CASE | |
| Seiko 5740-8000 | SEIKO CASE REFERENCE | |
| Citizen 4-H05178 | CITIZEN CASE | |
| Citizen 4-S05812 | CITIZEN CASE | |
| Citizen 4-953762 | CITIZEN CASE | |
| Citizen 4-Y55973 | CITIZEN CASE | |
| Citizen EZ0072 | CITIZE CASE REFERENCE | |
| Elgin 140 | ||
| Omega 14225 | OMEGA CASE - USES CALIBER 300 | |
| Citizen 4-Y55973 | CITIZEN CASE | |
| Omega 168.0066 | OMEGA CASE - USES CALIBER 1011 | |
| Omega 551.067 | OMEGA CASE USES CALIBER 663 | |
| Citizen 4-941993 | CITIZEN CASE | |
| Parrenin 87TC | 10.5 | |
| Seiko 2501A | 17 JL AUTO SW SEC | 7.75 |
| Seiko 2906-535A | SEIKO CASE REFERENCE | |
| Seiko 2E50-5180 | SEIKO CASE REFERENCE | |
| Seiko 5740-8000 | SEIKO CASE REFERENCE | |
| Seiko 6106-8700 | SEIKO CASE REFERENCE | |
| Seiko 7223-6030 | SEIKO CASE REFERENCE | |
| Seiko 7546-8039 | SEIKO CASE REFERENCE | |
| Seiko V811-5410 | SEIKO CASE | |
| Seiko W802-6010 | SEIKO CASE 951201 | |
| Seiko Y481-686A | PULSAR CASE REFERENCE | |
| Seiko Y522-6059 | SEIKO CASE REFERENCE | |
| Seiko Y590-5390 | PULSAR 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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