1970 Bulova Sea King "BX", 11blac. The case back serial number is 005958, the inside reference number is j-2682. The case is marked N0 and the movement is marked N1. This matches the 1970 Sea King "BX". Funny thing, I thought this was a Clipper "P". They look identical to me, except the clipper is mid to late 60s with the 11alac and the later Sea King has the 11blac. Again this is just my opinion from quick google data collection. Thanks for looking! This teardown is also on my YouTube, not a good video I mixed up the pause and record during part of the reassembly, haha.
Here's my YouTube video, if it helps...
I believe I found a linebook match for a 1970/71 Bulova Sea King "BX" (black dial version)

In reply to I believe I found a linebook… by mybulova_admin
Sweet! I believe this is the same or similar image I saw.
Nice example...Sea King "BX"
In reply to Nice example...Sea King "BX" by Andersok
Thanks! It was very dirty when I got it. And the dial has a faint film that makes it not so dark black. I imagine there is a much better dial out there, which would make this thing really pop.
In reply to Thanks! It was very dirty… by dc.gronlund
I've noticed with these full numeral luminous types that the numbers are often darkened - as are the hands, but your dial is rather good for the age.
1970 Bulova Sea King BX
1970 Bulova Sea King "BX" is a good match and a first for the database.
Very nice!
1970 Bulova Sea King "BX"