The 6024 in our Serial # Project is listed as having a 710. But that is a manual wind, which I thought this reference was supposed to be, not a Perpetual.
I think 1950 is too early for the 1210, so it probably would be the 710 if your SN corresponds correctly.
And I think the caliber# is marked on the top of the movement on these, so maybe you have to remove the dial to check??? Maybe someone can confirm that (Tommy?) because I'm not 100% sure about that.