Cartier 18K Gold Plated Tank Watch Tiger Eye Dial 17 Jewels Damaged

Preowned and Missing parts: Cartier 18K Gold Plated Tank Watch Tiger Eye Dial 17 Jewels 2512-1 Has the original Cartier Black Band The watch is missing the Cartier Sapphire Crown. I sent it to Cartier and they were unable to fix it. It does wind with a different crown. I don't know if it is in working order. If you know how to fix a watch this could be a great buy for you! These images are important part of the listing. Please look over them carefully. You will get the item that is pictured. Please check the pictures carefully to make your own evaluation the condition.