Is this Accutron case back solid gold?

[LittleWatchShop]

Last week, I bought a bunch of stuff from an NAWCC member.  Lots of junk quartz watches, but a few accutron tuning fork watches and some accutron quartz watches.

I think whoever worked on this accutron quartz accidentally switched out a solid gold back where a gold filled one probably was.  I have seen lots of accutrons where the wording on the back says "gold filled" whereas this one just says "gold."  I think it is 14K solid gold.

Opinion?

[Nucejoe]

Acid test at your jeweler is a sure way to find out.

[markr]

If the back is gold good chance the case is gold.

If the case ain't gold I have an exhibition Back that should fit if you don't want to put the gold one back on it.

[HectorLooi]

It should be solid 14K gold. If it were plated or rolled gold, Bulova would have stated it clearly. Is the under surface of the caseback gold or silver colored?

[JohnR725]

yes that does look like a solid gold back. Usually there very clear if it's plated or something else and here it's clear that it is gold with no qualifiers of plating or rolled gold or anything else.

[LittleWatchShop]

4 hours ago, HectorLooi said:

Is the under surface of the caseback gold or silver colored?

Gold

[kd8tzc]

I know there are better ways to test, but I would think that it would be fairly heavy if it were solid gold.

[LittleWatchShop]

Here is the "gold filled" back and a comparison of the weights.  The "gold filled" back is lighter.

[RichardHarris123]

If you found the volume by water displacement, we would know for sure.  Remember Archimede's?