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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
mainspring number 1720
1500 Platinum Sheet Solder (CIF) 1500 platinum sheet solder
This beading block consists of 40 balls from diameter 0
Overall length is 3-1/2"
depending on magnification
Jaeger LeCoultre® calibre # 840 fourth wheel and pinion generic crowns to fit IWC® mainspring number 1720Jaeger LeCoultre fourth wheel and pinion, part # 220, calibre # 840 fourth wheel and pinion to fit Jaeger LeCoultre calibres: 840 *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.
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