Hi all, I like the Omega-30mm-watches - and collect them, if I find some for reasonable prices. So I get a Ref. 2537 ca. 1,5 years ago and would like to know more about it - without any trading interest. Is this reference rare? I tried to get another one, but can´t find it. Is it possible to specify a price-range for that reference - not perfect but comparable with the pictured one? regards - h.u.