Yes. This is a brindle Chesapeake, and unlike the brindling on the Labradors, this dog has brindling throughout its coat.
Because all Chessies are brown skinned (bb), the brindling is dark brown, not black.
The coat texture and the fact that the brindling isn’t as clearly contrasted makes it more difficult to discern.
I need to search my hard drive for some pictures I took of a brindle chessie at a dog show last year. Really interesting coat color because, like you say, the brindling is harder to discern.
May derive from the old German brindle – brackes?
Brindling in the Chessie may have come from some of the local hounds/curs used in developing the breed, or handed down as a recessive from the original founders, Sailor and Canton (who came from Newfoundland). One was black, one was “dingy red”; either could have carried the hidden gene.