JLC 182

Calibre JLC 182 is a watch movement from Jaeger-LeCoultre. It is notable for powering the most complex watch ever produced until that time, the Duomètre à Grande Sonnerie.

Calibre 182 was introduced in 2009 as the ultimate grande complication from Jaeger-LeCoultre. It includes no less than 26 complications

1. Westminster Carillon
2. 4 crystal-gongs
3. Grande sonnerie
4. Petite sonnerie
5. Silence
6. Minute repeater
7. Tourbillon
8. Flying tourbillon
9. Perpetual calendar
10. Instant calendar
11. Days
12. Retrograde days
13. Months
14. Retrograde months
15. Date
16. Retrograde date
17. Jumping hour and minutes
18. Regulation device with inertia-blocks
19. Strike power reserve indicator
20. Watch power reserve indicator
21. Secured incremental hours setting (forward)
22. Secured incremental minutes setting (forward)
23. Secured incremental minutes setting (backward)
24. Striking mode selector
25. Instant minute repeater activation
26. Automatic modes switch

Calibre 182 has 13 patents pending. It is a hand-winding movement made up of 1,406 pieces. It runs at 28,800 vph and has 99 jewels. With double barrels, it has a power reserve of 50 hours. It is related to the “Dual Wing” JLC 380 movement.

The repeater function is notable in that it includes all four notes needed for the full Westminster melody. On the hour, it plays all five bars of the melody, with full quarters ringing hours, and even optional minute repetition. It can also be set to Petite Sonerie, playing only a portion of the melody and chiming the hours. This movement includes the welded gongs from previous Jaeger-LeCoultre movements and introduces a new two-part “trebuchet” hammer design, later used in other Jaeger-LeCoultre repeaters.

Calibre 182 was only ever used in the limited-production Duomètre à Grande Sonnerie.

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