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- FHF Cal. 418-1 - Date indicator for flat dial, transferred 2557

| Brand | FHF |
|---|---|
| Calibre | FHF 418-1 |
| International reference | 2557 |
| Compatibility | FHF 406, FHF 407, FHF 408, FHF 417 |
| State | Never used |
| Year of production | 1965 |
| Caliber height | 1.20 mm |
| Frequency | 21'600 A/h |
| Ruby | 17 |