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.
(From the front to the back)
Dials
1.
Day of the month 7. Chronograph second hand 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 |
