I got into tournament Chess in 1987, so I never saw this clock, but I did buy and use a Blitz, analog clock before digitals. And I bought the Excalibur when it came out in 1996.
The blitz clock I owned was was a Jerger Blitz Chess Clock. It had 15 minutes total on the dial. It had only a minute hand and no second, smaller hour hand.
There was a small red “stick” hinged at the top and it would pendulum swing to the seconds.
It had the standard red flag that would fall when the minute hand reached the top 15 mark which actually was a “0”. This is the same flag as all the other analogs.
And the numbers also went backwards with the first mark after the top being a 14. It then counted down clockwise.
In about 1998 or so, I sold that clock and my other analog clocks so I could buy a Chronos digital clock.
This Blitzer clock looks similar to my Jerger. But the hour hand was not necessary and dropped with the Jerger. I also don’t see or understand how it’s flag worked. Maybe that is why it didn’t stay on the market.
