NIVADA GRENCHEN CHRONOMASTER AVIATOR SEA DIVER
Beautiful steel chronograph. Screw-down caseback. Bidirectional graduated black bezel. Black dial with two counters; minute totalizer at 3 o’clock and small seconds at 9 o’clock. Baton hour markers. Tachometric scale. Mechanical movement, Valjoux 23. Brown leather strap with pin buckle.