most make perfect sense to me... initial reaction of surprise for me perhaps is that the 5146 line continues to remain as there are two subsequent annual calendar line releases (5396 and 5205) since a few years back... also a touch surprised 5131p and all...
5219 - 39mm Hobnail bezel with a larger movement 5297 - 349mm replacement to 5296 5168A - 42.2mm Aquanaut steel with black dial 5711/1A-012 - gradient black-to-blue dial 5800/1A-010 - 42.2mm Nautilus steel on steel with blue dial *These are guesses as to ...
...is that the 5131P remains in the collection, while it was given for safe at many levels that it was being discontinued. In this case, TS would have really (more positively than negatively) surprised many people, including my humble self! Interesting th...