Beautiful watch... the M0 just refers to the date of manufacture, in this case, M and 0 standing for 1960. There are several factors that play into these specific models, I happen to have this same model from 1960, just like yours, only with a lower serial number, in fact, it was within the first 1000 or so Bulova ever made, also, "true" M0 Accutrons have a specific M0 movement with specific variances, for instance, a cut away on the front of the pillar plate and a lack of any lead retention systems under the tuning fork, etc. Those will command the most money as they're "all original". As for how many were made, of this specific model, it's hard to say... I believe Bulova made this model for 4 years in total, from 1960 to 64. Of course the later years were M1, M2, M3... but same watch otherwise. Even without exact numbers, you can hazard a guess a LOT were made though, Accutrons were extremely popular at their time and over four million were made in total between the various ranges.
That all said, yes, your watch is marketable and would be a fairly easy sell, Accutrons remain popular amongst vintage watch collectors. Value is a tricky one as these watches have become volatile over the past few years. Years ago they were pretty stable, maybe two hundred US dollars for when in good shape. These days you'll see one sell for $175 USD and two weeks later, someone pay $600 USD for the same exact model. Makes no sense.
Hopefully that helps provide you with some direction.
Unless you need the money I'd suggest hanging onto it, they're such fun pieces to wear.
Good luck!