Seiko Neo Sports Chronograph Ref SSB257P1 Movement: Quartz Glass: Hardlex Display: Analog Color of the dial: Black Shape of the dial: Round Luminescence: Hands Material: Polished SteelSilver Case diameter: 44 mm Water resistance: 10 bar / 100 m Bracelet: Polished Silver Steel Clasp: Base Functions: 12 Hour Format, 24 Hour Format, Chronograph, Calendar, Tachymeter