Jaeger LeCoultre® calibre # 10ROL mainspring Fits calibers: 10ROL, 480, 800, 810, K830, K831 705 Series Ronda Bergeon Thinner for Luminous Compound

Bergeon Thinner for Luminous Compound Thinner only

or any other jewellery

When dissolved in hot water

Can be used to kick start movements

Length of cut is 3/4" (19mm)

Jaeger LeCoultre® calibre # 10ROL mainspring Fits calibers: 10ROL, 480, 800, 810, K830, K831 705 Series Ronda Bergeon Thinner for Luminous CompoundJaeger LeCoultre mainspring, part # 770, calibre # 10ROL mainspring to fit Jaeger LeCoultre calibres: 10ROL, 480, 800, 810, K830, K831 *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.