Jaeger LeCoultre® calibre # 17UOC yoke spring - Fits calibers: 17UOC, 17UOV, 414, 415, 429 Cardinal Crystals and 2 hammers and 2

and 2 hammers and 2 striking bells mounted on the back of the movement

cutting portion measures 2"

40 mm x 25

30 seconds divided into 1/10th from the center

They are suitable for both outside (10x) and inside (2x) threading

Jaeger LeCoultre® calibre # 17UOC yoke spring - Fits calibers: 17UOC, 17UOV, 414, 415, 429 Cardinal Crystals and 2 hammers and 2Jaeger LeCoultre yoke spring, part # 440, calibre # 17UOC yoke spring to fit Jaeger LeCoultre calibres: 17UOC, 17UOV, 414, 415, 429 *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.