Yes sir. The earlier batches of 15400 used white gold screws and the later batches all use stainless steel screws. All 15500 use stainless steel screws.I remember legend posting this before, I’m 99% sure he said 15400 used white gold screws 15500 is stainless. Please correct me if I’m wrong, that’s one thing I would not change, I’d wear as is and put the money into a rebrushing if needed. I just ordered my apsf 15500 blue dial