The gold example is the most interesting of the three, it is an 18K MQ 32Khz as issued to Apollo-Soyuz crew and staff upon their return from space, the commercial model (you have) is quite rare but unfortunately not the most desirable constellation due to the quartz movement (and looks to be a non runner) so horrendous as it sounds has a value of around the actual gold weight value.
The T17 (or similar) deco Omega appears to have had a redial (note the poor printing) and the other is either a GP or solid gold Omega DeVile calibre 620 (or similar) dress watch circa 1965-1975, again of little real value
Regards Tom