It has nothing to do with Sedgely. It is a Belgian-made revolver, chambered for the 7.65 Browning (.32 ACP) cartridge. (The marking is 7.65, not 7.62.) They were made by the ton, and are of fair quality, but never sold well in the U.S. The 1911 German Alfa catalog shows almost identical ones, some made in Belgium, others in Germany. The sold for around 16 Marks or about $4.00 at the time and were equivalent to American double action solid frame revolvers of the same period.
Many guns of that type had folding triggers, but that one does not. The trigger is conventional double action; the trigger guard is missing.
(Before someone informs me that .32 ACP can't be used in a revolver, note that the .25 ACP, .32 ACP, 9mm Browning Long and .38 ACP are semi-rimmed, and all have been used in revolvers at one time or another. .25 and .32 ACP (6.35mm Browning and 7.65mm Browning) were commonly chambered in revolvers of that general type, and in better quality revolvers as well.)
Jim