Upon opening the box, the buyer is sometimes surprised (and dismayed) with the unexpected addition.
I believe ISO had an update that requires divers watches to have a lume plot at all 12 positions. Hence, Seiko complied with their lume plot wedged at the periphery.
I believe they also updated the writing on the case back to reflect that this is a diver's watch. Would like to see the backs of those two watches to compare. -John
P.S. If the 12 lume plot is a requirement, I wonder what Rolex will do with their divers!