The watch appears to have a legit DNN bezel, so I think it's premature to speculate that it's replaced before knowing the movement serial number. Similarly, regarding the bracelet, it will be necessary to see the clasp, inside and out. The value is incredibly sensitive to condition, and really we have no way of evaluating that based on a single low-resolution photo. If the OP is serious about getting useful information from forum members, he needs to make more of an effort to obtain and post many high-resolution photos of the watch from many angles, including the inside.
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