Jaeger LeCoultre® calibre # 489 balance with flat hairspring, regulated Fits calibers: 489, 489/1, 601 mechan, 814, K814, P489 slimline pliers and cutters 2 mm (3") hole when

2 mm (3") hole when using the metal clips only

19 ligne NWS1

with canon pinion

400 Day Clock Suspension Unit 45A can be identified in the Horolovar 400- Day Repair Guide

Material: Genuine IWC part 4303 (blue steel)

Jaeger LeCoultre® calibre # 489 balance with flat hairspring, regulated Fits calibers: 489, 489/1, 601 mechan, 814, K814, P489 slimline pliers and cutters 2 mm (3") hole whenJaeger LeCoultre balance with flat hairspring, regulated, part # 721, calibre # 489 balance with flat hairspring, regulated to fit Jaeger LeCoultre calibres: 489, 489 1, P489, 601 mechan, 814, K814 *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.