Hi Luiz, what do you mean with "Smena first generation"? Shutter and lens are similar to Smena and other SL cameras, but not "exactly reminiscent". There were many such cameras with similar shutter-system at that time. The body is also "similar" to Rollei 35, as well as similar to the first FED-Micron.
Hello Alexander Although all knob Smenas have similar shutters they have some diferences in coupling systems and design. I call first generation, once this YouYi (Friendship) has 4.5 lens, while all others don't. Also, all mechanics were taken from Smena first generation which has film advande in the left side. the body is also bottom and rear openings absolutely similar to Rollei 35 up to the strap lock, which differs from FED Microns. Regards LP