OEM SRPB46 in SRPB77 Case All OEM, strap is not. All I did was swap the inner components. Please reference picture #7. Watch is running well. After I did that the minute hand and some indices started to develop an interesting patina. Please see pictures. Case/crystal have minimal signs of wear. Nothing major. Tried to capture in pictures. Please reference picture Any questions don’t hesitate to ask. $200 shipped to CONUS. PayPal F&F