New stock will arrive, though. Just check with the trusted dealers.
177 is titanium, 005 is stainless steel. Pick your poison.
I prefer it's mate texture and colour of the " Panerai " & " luminor Marina " writing ...
Also a relume which will bring out the sandwich dial a bit more.
Something like this one on RWG : http://www.rwgforum.com/topic/12832...ic/128327-my-finished-pam177l-with-111j-dial/
one comment though, that will make the lume slightly weaker as the 177L has a super thick layer of lume on it!
if u use the right lume would not make it weeker maybe touch stronger