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Mainspring
For Unitas 446
1.60 x 0.090 x 250 x 8.0 mm
Height (H): 1.6mm
Thickness (T): 0.09mm
Total Length (TL): 250mm
Barrel Diameter (BD): 8mm
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:
| GR Reference # | Mainspring |
|---|---|
| GR4463 | 1.60 x 0.090 x 260 (250) x 8.0 mm |
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| A. Schild 1940 | 21600 BPH-DSS-SHOCK-ADJ-STUD HOLDER | 10.5 |
| Bulova C869823 | ||
| Standard 612 | 21,600 BPH | 4.75 x 6.5 |
| Citizen 34-9593 | CITIZE CASE REFERENCE | |
| Citizen 4-241398 | CITIZEN CASE | |
| Citizen 4-363183 | CITIZEN CASE | |
| Citizen 4-R07493 | CITIZEN CASE | |
| Citizen 4-S099150 | ||
| Citizen 4-S45016 | CITIZEN CASE | |
| Seiko 2517-0210 | SEIKO CASE REFERENCE | |
| ETA 2836R | 28800 BPH-DSS-AUTO-CALD DAY/DATE W/CORR STOP | 11.5 |
| Landeron 19 | TIMER | 19 |
| New Factory Tavennes 304 | 8.75 | |
| ETA 2836R | 28800 BPH-DSS-AUTO-CALD DAY/DATE W/CORR STOP | 11.5 |
| Omega 2758 | OMEGA CASE USES CALIBER 240 | |
| Seiko 2517-0210 | SEIKO CASE REFERENCE | |
| Seiko 2A22-5180 | SEIKO CASE REFERENCE | |
| Seiko 6531-5010 | SEIKO CASE REFERENCE | |
| Seiko 7750-508H | SEIKO CASE REFERENCE | |
| Seiko 7T32-F069 | SEIKO CASE | |
| Seiko 8306-8090 | SEIKO CASE REFERENCE | |
| Seiko H461-5019 | SEIKO CASE REFERENCE | |
| Seiko V701-2H10 | ||
| Standard 612 | 21,600 BPH | 4.75 x 6.5 |
| Seiko W041-5680 | LORUS CASE REFERENCE | |
| Seiko Y100-4210 | PULSAR CASE REFERENCE | |
| Seiko Y151-0G50 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Standard 083 | ||
| Standard 612 | 21,600 BPH | 4.75 x 6.5 |
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Similar Mainspring Listing
This mainspring is similar to that used by the following movements. When values differ the exact value is shown brackets for reference:
| Movement | Mainspring | GR Reference # |
|---|---|---|
| Omega 26.5 | 1.50 (1.60) x 0.100 (0.090) x 360 (250) x 9.5 (8.0) mm | GR4125 |
| Omega 420 | 1.50 (1.60) x 0.100 (0.090) x 360 (250) x 9.5 (8.0) mm | GR4125 |
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