That is an Odyssey copy of the original Shimano DX BMX pedal from the late ‘70 - mid-‘80s. Odyssey did the Gyro and lots of other BMX components. Their best pedals were probably the Triple Traps but none of them were actually top line.
I had a feeling that you might know; it is kind of what I thought/remembered ( I wasn't keen on flatties at that time so wasn't paying that much attention, ahem....
). However I'm slightly baffled by lack of photos on the interweb….?
Bearings are cup and cone, with rubber seals inboard. They seem made very similarly to the original DMR V8 both in layout and quality.
BTW it seems they still make triple traps.
cheers