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Mainspring
For Unitas 331
1.25 x 0.100 x 250 x 8.5 mm
Height (H): 1.25mm
Thickness (T): 0.1mm
Total Length (TL): 250mm
Barrel Diameter (BD): 8.5mm
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 |
|---|---|---|
| Assortments ACON 1017 | FEMALE SPRINGBARS | |
| A. Schild 530.211 | 21,600 BPH-DSS-CALD-ADJ STUD HOLDER | 10.5 |
| Assortments ACON 1017 | FEMALE SPRINGBARS | |
| Citizen 4-C90601 | CITIZE CASE REFERENCE | |
| Bulova 2183F | 12.5 | |
| Bulova 523 | BULOVA CASE REFERENCE | |
| Bulova C852083 | BULOVA CASE REFERENCE | |
| Bulova C876645 | ||
| Citizen 4-L08816 | CITIZEN CASE | |
| Citizen 4-325354 | CITIZEN CASE | |
| Citizen 4-941926 | CITIZEN CASE | |
| Citizen 4-C90601 | CITIZE CASE REFERENCE | |
| Citizen 4-G06714 | CITIZEN CASE | |
| Citizen 4-L08816 | CITIZEN CASE | |
| Citizen 4-Y53831 | CITIZE CASE REFERENCE | |
| Citizen 45-5351 | CITIZE CASE REFERENCE | |
| Citizen 7872A | ||
| Elgin 369 | ||
| ETA 1318 | AUTOMATIC-DIRECT CENTER SECOND | 8.75 |
| Eterna 1034H | 9.75 | |
| Hamilton 796 | QUARTZ ANALOG DSS CALD W/CORR | 7.75 |
| ISA 317/80 | SUN & MOON WITH DATE | 11.5 |
| Longines 23Z | MECH STEM 200/1063F WILL REQUIRE ALTERING! SMALL SECOND | 10.5 |
| Longines 561.2 | 28,800 BPH DSS AUTO CALD W/CORR | 7.75 |
| Seiko 1N01-0BM0 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 8420-6540 | SEIKO CASE REFERENCE | |
| Seiko COMET | CLOCK ALM | |
| Seiko V515-6390 | 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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