From what I think I know the Giant, made by the Illinois Watch Case Co. was a 20 year 10K gold filled case.
I would assume that this case was exchanged for one that wore through to the brass prior to the expiration of it's guarantee. I have seen other cases with just EX on them and took that to mean the same.
Can you post a picture go the pendant?
Posts: 2093 | Location: British Columbia in Canada | Registered: March 02, 2011
I asked about the "Dueber Exchange" mark on a case I have several years ago, there doesn't seem to be an answer.I have a 16s YGF Dueber case marked "Dueber Exchange", no karat mark but it is gold filled.I also have an 18s Philadelphia YGF case that is also marked "EXC" ,I think short for exchange.Must be something to do with the gold market back then.
Posts: 1323 | Location: Lebanon, Connecticut USA | Registered: March 28, 2008
I would have to agree with Lorne on this.it seems to make the most sense.the previous case probably wore through the gold plating and was guaranteed not to wear through in the period of time that it did,so they replaced it with a new one in exchange for the old worn out one.seems to make good sense to me.they would have had to replace some of the cases because under heavy use,there must have been some that didn't last for as long as they were warranted for.thanks for the input Lorne.
Posts: 203 | Location: British Columbia in Canada | Registered: May 11, 2014
To me, EXCHANGE, EXC, and X all are indications of a gold filled case exchanged for one that had worn thru the gold layer.
Now I am reminded of a line from the Clint Eastwood movie, Trouble With the Curve in which Clint says "You don't know half of what you think you know".
I found a SOLID 14K gold Howard case containing a Series 10 movement and the case has an X on the cuvette just below the serial number. Kinda blows at least 1/3 of my theory.
I will post a pic when the sale is over.
Posts: 2093 | Location: British Columbia in Canada | Registered: March 02, 2011
Yes Debbie, that is the thread I was asking Buster about, thanks for finding it.
Although it was a bit confusing and we never did see pictures I took it that Deacon had a case with one J. Boss cover and one Crescent cover with matching serial numbers.
It seems the same scenario with this solid gold case. The 129176 and the X on the Keystone cuvette appear to be stamped later than the logo itself.
Whoever did it would have had access to unstamped factory case parts so to me the # and X are legitimate indications of an exchange or replacement part
Posts: 2093 | Location: British Columbia in Canada | Registered: March 02, 2011