With 33 complications, 1728parts, and weight almost 3lbs, the Calibre 89 is no doubt the most complex watch in the world. It was created in 1989 to celebrate the 150th anniversary. There are only four available in platinum, white gold, rose gold and yellow gold.
Movement
(From the front to the back)
Dials
| 1. Day of the month | 7. Chronograph | 13. Minutes Hands |
| 2. Hour Hands | 8. Seconds hand | 14. Chronograph counter |
| 3. 12-hour recorder | 9. Moonphases | 15. Power Reserve |
| 4. Up-down chime | 10. Winding crown position indicator | 16. Month |
| 5. Day of the week | 11. Century decade and year displays | 17. Split second hand |
| 6. Hour of second time-zone | 12. Leap Year Indicator | 18. Thermometer |
| 19. sidereal time hour hand | 22. Time of sunrise | 25. Star chart |
| 20. Date of Easter | 23. Equation of time | 26. Sun hand |
| 21. sidereal time minute hand | 24. sidereal time second hand | 27. Time of sunset |
