23J Selfwinding Calendar - M8 F792601
It's an unusual movement and that's what makes me wonder. I can't find a lot of info on which watches used it other than the Time Center, which we have in the db. It's an in house 23 jewel, and follows the 10BPAC series which ended in the late fifties. This one started in 1965 and doesn't seem that common. I have no end date, but would probably be in the 70's.
It's possible that it was used in similar watches like the Date KIng, but I'm not seeing any examples with this movt.
In reply to It's an unusual movement and by Reverend Rob
Excellent point, Rob. It seems that this movement in 17, 23 and 30 jewels was used in the "Time Center", and the band with scrolling calendar is what made it special.
The other "special feature" may well have been the movement series.
We currently have only two examples ID'ed as Time Center in the Db, one on a calendar band and one without. They are also the only two examples of this movement in the Db.
I would be OK with Time Center tentative based on the unusual in house movement.