Fortis Men's 669.10.31L.16 B-47 Calculator Automatic 3 Time Zone Black Dial Watch

• 3 time zones. Date at 4 h. Calculator slide rule.


• Fine timing device and incabloc shock absorber


• 28.800 semi-vibrations per hour


• Conversion table celsius into fahrenheit engraved on the case back


• Water-resistant to 660 feet (200 M)

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