Calibre 470 was a chronometer-grade hand winding movement from Jaeger-LeCoultre.
Originally used in the military Mark 7 A, Calibre 470 was a hand-winding movement with great precision. It evolved into the Calibre 488 SBr, used in the Mark 11, which added hacking seconds. Calibre 468 was similar. The next revision was Calibre P 478 BWSBr, the movement used in the legendary Jaeger-LeCoultre Geophysic chronometer of 1958. The 478 added shock protection and a swan neck regulator but was otherwise similar to the 488.
- Hand-winding movement
- Hour, minute, central seconds
- Hacking (488, 478)
- Diameter 12.75 lignes, 28.8 mm
- Height 4.55 mm
- 15, 16, or 17 jewels
- 18,000 A/h
- Power reserve 40 Hours
jlc_470.txt · Last modified: 02.12.2022 20:38 by 127.0.0.1