Jaeger LeCoultre® calibre # 8NR stem spring Fits calibers: 402, 427, 496, 8NR, 8RF, 8RFO spandrels stem is at the 3

stem is at the 3 o'clock position

curved top (12 to 6) mineral crystal

with the working length of the broach being 100 mm

mainspring number 1720

you will need to shake or swing the watch from 800 to 2

Jaeger LeCoultre® calibre # 8NR stem spring Fits calibers: 402, 427, 496, 8NR, 8RF, 8RFO spandrels stem is at the 3Jaeger LeCoultre stem spring, part # 447, calibre # 8NR stem spring to fit Jaeger LeCoultre calibres: 402, 427, 496, 8NR, 8RF, 8RFO *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Jaeger LeCoultre. Jaeger LeCoultre warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.