I think it's a bit narrower than 19 mm, but the neck is super comfortable. I bought my RB couple years ago and it's still my favorite bass of all times.
Looking at those pickups I think they are more likely to be old Suhr pickups (like in '90s Deluxe Fenders) than Delanos. Or maybe my eyes are just playing tricks on me...
Really, guys, this bass has super-comfortable neck - it's the best profile I've had my hands on. It also keeps very playable for 35" scale even with my smallish hands. I don't get it how is this still here at this price...