Mine is literally the 2-inch DGX. I can only assume somewhere in transit it took a 'whack' that undid the face-seal. Otherwise I really liked it for it's heft and readability.
I suspect a large number of these "made in Italy" SPG's are all the same under the hood except for face and branding.
Edit to add: even DGX says: "these popular gauges are sold under a variety of brand names, but are all manufactured by Termo Industria in Italy."
All of the B&G spgs come from the same place in Italy. They just change out the branding. Hope they stay in business or we will have to switch to those cursed AI things or maybe I would just quit diving. The lens retainer is swaged on to the body. They are really not serviceable. Sometimes if the retainer is banged on something hard enough it will leak and sometimes they just leak anyways. Really, in the grand scheme of things, the B&G spg is ultra reliable, accurate enough and inexpensive enough.
Once upon a time, Scubapro made a boot for their B&G spg. It was a simple, easy to remove cover of neoprene rubber and had large holes for drainage. It protected the spg from knocks and could be slid off for cleaning. I am sure some are howling in pain, hose covers, spg covers, egad! I guess I removed mine not because these things were not effective for their purpose but in the end, as a minimalist, I had to remove them. And now I want to put the cover back on if I could find it.
These DIN fittings coming loose, what a PITA. Maybe just switch to a yoke? My Mark 2 Evo DIN came loose when one of the DMs grabbed my kitted out rig by the regulator first stage to hoist it into a truck during my Red Sea trip. I ran back to my room, grabbed my G260 Mark 17E DIN and swapped them out. Had that happened on the beach or boat, well? Might have missed a dive.