outer track. The 6196P might rightfully be deemed by some to be a “better” watch. More advanced full sized movement, see thru back etc. and yes, it has caused quite a sensation. But comparing it to 5196, while it is certainly elegant and fabulous, I find it to be somewhat boring. A bit heretical on my part. Yet that’s how I feel comparing the 2 references. Now if the 6196 had Breguet numerals and/or or something more exciting than a simple one color dial that might totally change my feelings about it and change my overall view from “like” to “love”.