Choice help and places for a pre-owned watches

[AdvocatusD]

Pondering between:

IWC Portofino (not sure which one yet!) http://www.iwc.com/collection/portofino/IW3610/

IWC Portugeuse http://www.iwc.com/collection/portuguese/IW3714/

Jaeger Le Coutre Master Contol http://www.jaeger-lecoultre.com/eu/en/watches/mast...

Would welcome inputs on reputable pre-owned retailers.

Would also welcome some opinions on these watches.

See ya!