Cartier Leather Strap Replacement

[Justman]

I am looking for some advice please regarding replacing the strap on my watch. I bought a Cartier Gents Ronde Solo with a black alligator strap 7 years ago. I called the jewellers I bought the watch from and they wanted £250 to replace it. That seemed rather expensive but looking around the internet, I can only get the strap for £199 at best.

Is this the norm for Cartier or is that a little expensive? I've thought about going for an after market strap but not sure if this is the right thing to do. Can anybody recommend a strap suitable?

I have the product code KD18JT19. The lug width is 20mm and it's a strap band to fit to the Cartier deployment buckle.

Any help would be really appreciated.

[Justman]

Thought that may be the case. Thanks very much Chris.