Was "Belforte" a name owned by the French company, LIP? I'm not sure, but I recently bought a haul (see below!) of electronic watches, most of which contain the LIP R 148 movement and many of these had "Belforte" on the dial.

These watches often have a display back which is in fact, just another acrylic cystal on the back.

The diver version, below, is a little special: there don't seem to be many electric or electronic diver watches; this one could never have been waterproof with its flimsy snap-on back!

Belforte also produced a "Spaceview" to rival the Bulova Accotron Spaceview. It employed a modified LIP R 148 movemeent with the following changes: the base plate was polished, a slot was cut in the base plate so the coil could be seen, the -ve battery power lead was painted a bright yellow, the keyless mechanism had a black PVD-type coating and an additional plate was added to hold back the hour hand gear. Many of these features can be seen in the genuine Belforte Spaceview below: