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- AS Cal. 1674 - Setting lever spring 445

| Brand | AS |
|---|---|
| Calibre | AS 1674 |
| International reference | 445 |
| Compatibility | 1656-1673-1675-1678 |
| State | Never used |
| Year of production | 1955 - 1963 |
| Caliber diameter | 25.60 mm |
| Caliber height | 4.60 mm |
| Frequency | 18'000 A/h |
| Lift | 52° |
| Power reserve | 40h |
| Ruby | 17/21/25 |