Jaeger LeCoultre® calibre # 910 core for alarm crown wheel - see Lec 910 part # 423 Fits calibers: 910, 911 Red Watch Bands 2 years on tank

2 years on tank

30 mm plastic crystal

3 mm (2-3/8") (H) x 47

for balance - yellow plate to fit Jaeger LeCoultre® calibres: 8RF

Jaeger LeCoultre® calibre # 910 core for alarm crown wheel - see Lec 910 part # 423 Fits calibers: 910, 911 Red Watch Bands 2 years on tankJaeger LeCoultre core for alarm crown wheel see Lec 910 part # 423, part # 7424, calibre # 910 core for alarm crown wheel see Lec 910 part # 423 to fit Jaeger LeCoultre calibres: 910, 911 *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.