Officine Panerai

I wanted to confirm that all of the 47mm Panerai's have 26mm lugs. Do the straps taper at the buckles? Here are my references in case the measurements vary. I'd appreciate if someone can confirm the measurements for a replacement strap for each of these references:

some do, some don't. As to which model's strap does what, I have no idea. Half an hour ago, I tried to put a Calf Gold OEM (the one for the Fiddy/127) to the 375 and I just couldn't the buckle width are different. I'm sure that there are a lot of people, in this forum, that know a lot more than me

I found a page on Panerai’s site which is a good guide for strap sizes.