Help identify the Alain Silberstein watch!

[Premiumwatches24]

Hello!

My aunt recently got Alain Silberstein watch as a gift which was from some of her old friends. However, the watch came in not a full set - no box and papers, so my aunt doesnt even know how to wind the watch, how to use functions, how much is the power reserve etc...

If anyone could help me identify the ref of the watch so I could find a manual to teach my aunt, I'd really appreciate that.

Thank you, guys, in advance