OP IV

hours, minutes, seconds, date, chronograph

30-minutes totalisator at “3”, 12-hours totalisator at “6”, 60-secondss totalisator at “9”, COSC Certified

Label Value
ModelOP IV
WindingAutomatic
BasisEl Primero 40.0
ProducerZenith
Introduction1999
Dimension29,89 mm (13 1/4''')
Frequency36.000 vph (5 Hz)
Power Reserve50 h
Jewels31
Height6,50 mm