it could be that I reveal nothing new. A source for high-quality motors are discarded CD players and CD-ROM drives. I dismantled a broken down CD-player and took out the small disk-drive motor. A long time ago I bought a Mehano (made in Yugoslavia) Pacific with a 3-pole motor for a few bucks. It ran terribly and I put it away. I replaced the 3-pole motor wirh the CD-player motor and now my Pacific runs like a charm.It starts moving very slowly at 3-4 Volts.
I have video tapes that show prototype Pacifics in all kind of situations and my orphan Pacific behaves just like the real ones.
Many of the original NWSL motors actually came from a company that made 8-track players (remember those?) in several sizes. Once that supply ran dry in the early 1990s, NWSL had a heck of a hard time finding similar motors.
Digikey is a fantastic place to find micro motors. They’ve got a MUCH larger selection than any model supplier!