rhetoric
·Can any IWC experts tell me why a cal. 852 movement, serial no. dating it to 1956, would be cased in a (18k) case, serial no. dating it to 1964-66? Seems a long way apart. And why would the inside caseback have only "International Watch Co", an 18k assay mark and a serial number? All the other ones I've seen have "Swiss" as well, and often an IWC crest. Might this watch have been cased outside of Switzerland and would this affect it's value? Thanks for any thoughts you might have.