Here’s a new Flip Clock which you can still buy brand new in 2020 but which is certainly a throwback to some digital clocks from the 1970s. In the late 1970s the market really took off for LED digital clocks but this style was a mechanical alternative which could still be considered a digital clock too. Vintage Flip Clocks were almost always designed so that the flaps were encased in some kind of container so that you couldn't touch them (and likely damage them) but you also couldn't see the back or sides of the mechanism. So I really appreciate this "open air" style allowing folks to see what's really happening all around.
I would guess that the market for Flip Clocks mostly dried up by the 1990s, but there's still a nice, little Flip Clock style alarm clock radio featured in the 1990s movie Groundhog Day (and they broke several of them in the making of the movie) and, of course, who can forget that Marty McFly had a Flip Clock in his bedroom in the Back to the Future movies?
You can look for this and similar clocks by simply searching for “Flip Clock” at Amazon. This one happens to carry the brand name WoneNice but there are others out there too. I found names like Betus, MIDCLOCK, Rejea, Twemco and more. There are also variations in style, including a wall-mounted version, clocks with different finishes and colors, clocks with taller stands, etc..
If you just can't get enough information about this and other, vintage Flip Clocks, check out a KZfaq channel for Flip Clock Fans... / @flipclockfans