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Mainspring
For Seiko 1F21-0F20
1.45 x 0.110 x 320 x 10.0 mm
GR Reference #: GR3983X
Height (H): 1.45mm
Thickness (T): 0.11mm
Total Length (TL): 320mm
Barrel Diameter (BD): 10mm
End Type: Auto
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 |
|---|---|---|
| Alpina 245 | 18.5 | |
| Bulova 3300 | CARAVELLE CASE REFERENCE | |
| Seiko B337-401B | SEIKO CASE REFERENCE | |
| Bulova C875308 | ||
| Citizen 4-160673 | CITIZEN CASE | |
| Caravelle 1353.50 | CAR BRIDGES ARE WHITE-BUL 1353.50 ARE GILT | |
| Citizen 37-2056 | CITIZE CASE REFERENCE | |
| Citizen 4-S58991 | CITIZEN CASE | |
| Citizen 4-160673 | CITIZEN CASE | |
| Seiko M159-5040 | SEIKO CASE REFERENCE | |
| Citizen 4-408845 | CITIZEN CASE | |
| Citizen 4-S02007 | CITIZEN CASE | |
| Citizen 4-S58991 | CITIZEN CASE | |
| Citizen 4-S78895 | CITIZEN CASE | |
| Citizen 4-Y53903 | CITIZE CASE REFERENCE | |
| Cyma Tavannes 578 | 15.5 | |
| Girard Perregaux 974-125 | ||
| Hamilton 857273 | HAMILT CASE REFERENCE | |
| Looping 54 | CAL CLOCK - BM 50-51 | 19 |
| Omega 18142 | OMEGA CASE USES CALIBER 480 | |
| Omega 2716 | OMEGA CASE USES CALIBER 240 | |
| Omega 2886 | OMEGA CASE | |
| Omega 398.835/169 | OMEGA CASE USES CALIBER 1250 | |
| Omega 7015 | OMEGA CASE USES CALIBER 213 | |
| Omega 795.0807 | OMEGA CASE USES CALIBER 1353 | |
| Patek Philippe 720000-739999 | SEE 12-400 | |
| Rolex 90523 | ROLEX CASE REFERENCE | |
| Seiko 1E20-5750 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 2F50-5729 | SEIKO CASE REFERENCE | |
| Seiko 6139-6030 | SEIKO CASE REFERENCE | |
| Seiko 7371-5040 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 7810-8059 | SEIKO CASE REFERENCE | |
| Seiko 7S36C | 23 JEWELS | |
| Seiko 8243-700A | SEIKO | |
| Seiko 8J41-6190 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko B337-401B | SEIKO CASE REFERENCE | |
| Seiko M159-5040 | SEIKO CASE REFERENCE | |
| Seiko V248-0130 | PULSAR CASE REFERENCE | |
| Seiko V742-8A00 | SEIKO CASE | |
| Ulysse Nardin N5B | 21,600 BPH-17JL-ASTROCHOC-ADJ-STUD HOLDER | 5.5 x 7 |
| Vacheron Constantin 133/1B | ||
| Venus 188 | CHRONOGRAPH | 14 |
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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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