Although I didn't liked the style of this strap when I have first saw it on the 187 (reminded me of Casio and other cheap watches straps), when I received it, I have found it EXTREMELY comfortable on the huge and heavy 187.
Panerai introduced this to the 2006 new sub models(44m), Joshua has offered it in 44mm as well.
I said to give it a try because 35$ for the strap AND a polished PRE-V buckle is really a BARGAIN.
I know it may look a bit strange on my 112 (our eyes are not used to this combo) but it is very comfortable and although the summer has passed this is a very good summer strap.
RECOMMENDED (if you have not already in order) for the 87 44mm SUB.