As noted, not a Cinelli. Cinelli and Colnago seem to be the most desired and "upbranded" bikes.
That out of the way, it may be a decent bike.
The bottom bracket cups should have (most likely, crank arms appear Shimano) the thread spec stamped into them,
Off drive side should be visible if you wipe off any crud, based on your report of the shell width, I would expect 1.370 x 24, English threading and not Italian which is 36 x 24., French is 35 x 1 and also 68mm wide.