2 5
MOVEMENT
CALIBRE: 11½ ```
DIAMETER: 25.60 MM
THICKNESS: 3.28 MM
NUMBER OF COMPONENTS: 147 MINIMUM
NUMBER OF JEWELS: 26 MINIMUM
FREQUENCY: 28,800 VIBRATIONS/HOUR
POWER RESERVE: 50 HOURS MINIMUM
ANTI-SHOCK DEVICES
INDEX-ASSEMBLY WITH FINE ADJUSTMENT
CENTRAL ROTOR ON BALL BEARING
BIDIRECTIONAL AUTOMATIC WINDING
INSTANTANEOUS DATE CHANGE
QUICK DATE CORRECTION
STOP SECOND FOR TIME SETTING TO THE SECOND
CHAR AC TERISTICS
2 5
Summary of Contents for EL PRIMERO series
Page 1: ...OPER ATING INSTRUC TIONS...
Page 4: ...ZENITH THE FUTURE OF SWISS WATCHMAKING SINCE 1865...
Page 10: ...EL PRIMERO...
Page 23: ...ELITE...
Page 31: ...EL PRIMERO 21...
Page 43: ...ZENITH OSCILL ATOR CALIBRE 9100...
Page 49: ...HAUTE HORLOGERIE...
Page 67: ...COMPLICATIONS...
Page 68: ...EL PRIMERO...
Page 81: ...ELITE...