I went to put on my 2.5 year old Black Seamaster Chrono Diver and found the clasp extension split in two while opening it. There is a small flanged pin that links the double arm and single arm segments that simply snapped. It is a solid pin that is flanged on each end, so I am wondering the proper way to repair it? Would you go with a solid pin that is hammered on both ends to create the flanges and looks original, or a pin with threaded flange inserts at each end? This is probably a fairly common issue, the repair itself is likely very simple, but I want it done right and as close to OEM as reasonable. What is the correct way to repair this?