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Mainspring
For Unitas 6437
1.60 x 0.080 x 250 x 7.5 mm
Height (H): 1.6mm
Thickness (T): 0.08mm
Total Length (TL): 250mm
Barrel Diameter (BD): 7.5mm
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 |
|---|---|---|
| A. Schild 303 | 10.5 | |
| Seiko 1N01-0G90 | SEIKO CASE REFERENCE | |
| Alpina 626 | FELSA 64 SS | 8.75 |
| Bulova C869493 | ||
| Bulova R338 | BULOVA CASE REFERENCE | |
| Citizen 36-0198 | CITIZE CASE REFERENCE | |
| Citizen 4-072839 | CITIZEN CASE | |
| Standard 179A | 12 | |
| Citizen 4-105141 | CITIZEN CASE | |
| Citizen 4-324731 | CITIZE CASE REFERENCE | |
| Citizen 4-373081 | CITIZEN CASE | |
| Citizen 4-571461 | CITIZEN CASE | |
| Citizen 4-690923 | CITIZE CASE REFERENCE | |
| Seiko 6309-8910 | SEIKO CASE REFERENCE | |
| Citizen 4-751086 | CITIZEN CASE | |
| Citizen 4-797132 | CITIZEN CASE | |
| Citizen 4-898834 | CITIZEN CASE | |
| Citizen 4-946936 | CITIZEN CASE | |
| Citizen 4-E67757 | CITIZEN CASE | |
| Seiko V810-0930 | SEIKO CASE 951201 | |
| Citizen 4-F50212 | CITIZE CASE REFERENCE | |
| Citizen 4-G13443 | CITIZEN CASE | |
| Citizen 4-L04195 | CITIZEN CASE | |
| Seiko V810-0930 | SEIKO CASE 951201 | |
| Citizen 4-R001035 | ||
| Citizen 4-S02511 | CITIZE CASE REFERENCE | |
| Citizen 44-3131 | CITIZE CASE REFERENCE | |
| Seiko V329-6270 | SEIKO CASE REFERENCE | |
| Citizen 99-0116 | CITIZE CASE REFERENCE | |
| Concord 17 | ||
| Elgin 313 5-1/2L | FEF 6600 17 JL INCA ADJ STUDHOLDER | 5.5 |
| ETA 2893 | ETA MECHANICAL MOVEMENT | |
| Citizen 4-324731 | CITIZE CASE REFERENCE | |
| Fleurier 215 | 11.5 | |
| Longines 5700 | LONGIN CASE REFERENCE | |
| Seiko 1N01-0CR0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| MSR H67/28 | 7.75 | |
| Omega 311.003 | OMEGA CASE USES CALIBER | |
| Omega 3848 | OMEGA CASE USES CALIBER 240 | |
| Omega TN5237TA | OMEGA CASE | |
| Patek Philippe E27 | QUARTZ ANALOG | 10.5 x 11.5 |
| Rolex 69018 | ROLEX CASE REFERENCE | |
| Seiko 8N70-6021 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Ronda 706 | QUARTZ ANALOG DSS CALD DAY DTE MOON PHASE | 10.5 |
| Seiko 1E20B | QUARTZ 5 JLS ANALOG | |
| Seiko 1N01-0CR0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 1N01-0G90 | SEIKO CASE REFERENCE | |
| Citizen 4-946936 | CITIZEN CASE | |
| Seiko 2E20-7270 | SEIKO CASE 951201 | |
| Seiko 2Y00-5410 | SEIKO CASE REFERENCE | |
| Seiko 3803-5000 | SEIKO CASE REFERENCE | |
| Seiko 4300-3320 | SEIKO CASE REFERENCE | |
| Citizen 4-G13443 | CITIZEN CASE | |
| Seiko 4N20-0720 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 5606-6060 | SEIKO CASE REFERENCE | |
| Seiko 6309-8910 | SEIKO CASE REFERENCE | |
| Seiko 6730-5489 | SEIKO CASE REFERENCE | |
| Seiko 8N70-6021 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 7019-7170 | SEIKO CASE REFERENCE | |
| Seiko 7430-5010 | SEIKO CASE REFERENCE | |
| Seiko 7N29-5B90 | SEIKO CASE REFERENCE | |
| Patek Philippe E27 | QUARTZ ANALOG | 10.5 x 11.5 |
| Seiko 7N82-5020 | SEIKO CASE 951201 | |
| Seiko 8F32-0209 | ||
| Seiko 8N70-6021 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko S701-4A00 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko V250-5050 | PULSAR CASE REFERENCE | |
| Seiko V329-6270 | SEIKO CASE REFERENCE | |
| Seiko V33J-0AD0 | SEIKO CASE REFERENCE COSERVE 2005 | |
| Seiko V532-5A00 | SEIKO CASE REFERENCE | |
| Seiko V701-2C10 | SEIKO CASE | |
| Seiko V810-0930 | SEIKO CASE 951201 | |
| Seiko V811-0340 | PULSAR CASE | |
| Seiko VX43-0AE0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Standard 179A | 12 | |
| Wittnauer CAS1721 | WITTNA CASE REFERENCE | |
| Wittnauer SX-2320 | WITTNA CASE REFERENCE | |
| Zodiac 50 | 13.75 |
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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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