Aftermarket Cartier Roadster LM/SS/CHRONO MX001LF0 Back Gasket (30.1x29x1.0). This high-quality gasket ensures a secure seal between the case back and the watch crystal, helping to protect the movement from moisture and dust. A reliable replacement for maintaining water resistance in your Cartier timepiece. 

Non Original Part 

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Cartier® warranty may be voided by using generic non-original parts