Zenith 400Z-225, Fourth wheel, 120 teeth
- ZENITH original part in factoy sealed packaging. no: 53.74.0390.400
- Wheel with 120 teeth / 6 arms.
- Fits cal: 400Z, 405Z, 410Z, 420Z, 4001, 4002
Versions:
- 3019PHC: date.
- 3019PHF: H:= 7.55 mm, day, date, month, moon phase.
- 400*: H:= 6.50 mm, date, redesign.
- 405*: H:= 6.50 mm, fly back function.
- 410*: H:= 7.55 mm, day, date, month, moon phase.
- 420*: H:= 5.70 mm, manual wind.
- 4001: H:= 7.77 mm, day, date, month, moon phase.
- 4002: H:= 6.50 mm, date.
- 4009: H:= 7.55 mm, day, date, month, moon phase, fly back.
- 4021: H:= 6.50 mm, 60 s, 30 min counter, sceletonized at escapement, power reserve display.
- 4026: H:= 9.35 mm, rattrapante, big date.
- 4052: H: = -- mm, 1/10 th of a second chronograph
- * = suffix Z: redesigned fourth wheel and escape wheel.