Jaeger LeCoultre® calibre # 838 balance staff - for shock protected device Fits calibers: 838, 839 Brown Overall length is 5-1/2" (140mm)

Overall length is 5-1/2" (140mm)

with a maximum work speed of 5500 RPM

Genuine Omega® ratchet wheel screw

Assortment of Cloth Inside Ring Shells - Box of 12 Comes with 12 shells in assorted grits

PERRIN End Cutter this end cutter features a regular edge

Jaeger LeCoultre® calibre # 838 balance staff - for shock protected device Fits calibers: 838, 839 Brown Overall length is 5-1/2" (140mm)Jaeger LeCoultre balance staff for shock protected device, part # 727, calibre # 838 balance staff for shock protected device to fit Jaeger LeCoultre calibres: 838, 839 *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.