Jaeger LeCoultre® calibre # 22RLEC click spring - Fits calibers: 206, 207, 22RLEC, 22RLECQ clock mainsprings Rolex Marconi 10 1/2 -51

Rolex Marconi 10 1/2 -51

Genuine Omega® barrel with barrel arbor

They are sterling silver and 9mm in size

400 Day Clock Suspension Unit 18A can be identified in the Horolovar 400- Day Repair Guide and is the same as Unit 18B and 18C

Longines® REF 2004

Jaeger LeCoultre® calibre # 22RLEC click spring - Fits calibers: 206, 207, 22RLEC, 22RLECQ clock mainsprings Rolex Marconi 10 1/2 -51Jaeger LeCoultre click spring, part # 430, calibre # 22RLEC click spring to fit Jaeger LeCoultre calibres: 22RLEC, 22RLECQ, 206, 207 *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.