The forward 1st class staircase had the famous "Honor and Glory Crowning Time" of course, but the aft staircase did not. The clock was roughly in the same position but had a simpler surround of wood molding. I first saw this picture of the aft 1st class staircase on page 153 in the book "Titanic & Her Sisters Olympic & Britannic" by Tom McCluskie, Michael Sharpe, and Leo Marriott. They may have mis-identified the picture a bit as the caption reads "Olympic's first class staircase was identical to Titanic's with the exception of Olympic's clock which was far less ornate."
Sorry to say but that book is full of mistakes!