Cartier Battery Change??

[UPDATE (5/22/25): I just learned that having a third party replace the battery will void the warranty (we have about 4 years left on the 8-year warranty).

I'm inclined to go ahead and do the third-party battery change anyway.

But I thought I'd check: would it make more sense to preserve the warranty?]

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Hi Everyone, my wife's Ronde de Cartier needs a battery change.

I just called the AD where we bought it for her–and they said it would need to be sent to Cartier. This would take 8-10…

Cartier Battery Change??