FILE PHOTO: The logo of Swiss bank Credit Suisse is seen at its headquarters at the Paradeplatz square in Zurich, Switzerland October 1, 2019. REUTERS/Arnd Wiegmann ZURICH (Reuters) - Credit Suisse on Tuesday said a judge presiding over a more than decade-long dispute regarding a U.S. residential mortgage backed security (RMBS) had asked the bank and another party to issue estimates of damages, which could result in a judgment against Credit Suisse of up to approximately $680 million. “While Credit Suisse believes that it has strong grounds for appeal, it has already taken provisions totalling $300 million in prior periods in connection with this case, and would expect to increase its RMBS-related provisions as a consequence of this order,” the bank said. “We will provide an update on the impact on our 4Q20 results in due course.”