gold coins and I used to do an amazing demo with them. If I took the largest of the coins which weighed a full troy ounce and balanced it on the tip of my finger, I could tap its edge with another coin and it would "sing" audibly for almost a half minute! Coins made from the denser precious metals will often display this property. Let's you know you've got the "real thing" in your hands!
Today, as central banks around the world are trying to make manipulating their country's currency easier (intended to lower its real value in order to make paying back all of their governments' debts easier), they are engaging in a practice known as "digitalizing" their money supplies. No need to adulterate the gold or silver in their coins with non precious metals or even run their currency printing presses at a faster speed. Rather, they simply "electronically transfer" numbers into their various commercial banks' accounts via electronic funds transfer or "EFT" were it is immediately available to be lent out at today's low interest rates. Just think of all of the diesel fuel saved by not having to drive those massive armored cars to the banks loaded down with bags of coins and currency notes! It's a great way to lower air pollution and help combat "Global Warming"!
Of course, this practice then inflates the country's money supply and can lead to catastrophic future hyperinflation (a sudden and scary increase in the price of EVERYTHING one needs to live!) unless all of that "created" money is eventually extracted from the money supply. This is done by offsetting the newly created "money" with the equivalent amount of government bonds that are "sold" to the central bank involved and that will, of course, increase the nation's "sovereign" debt. But, not to worry, that debt, even though continuously escalating (this always tends to happen when one "lives beyond his means"), can then be be "serviced" by simply borrowing even more created money at even lower interest rates in the future as the nation's inflated money supply continues to lose value against a source with REAL "intrinsic" value such as gold or silver. Yes, it's a wonderfully creative scheme for sweeping a nation's various fiscal problems under the rug, but it can only lead to one final result: a GLOBAL economic collapse that will wipe out about 99% of the buying power of the "wealth" of its citizens! With each passing day, we draw a bit closer to that terrible "Day of Reckoning"!
After the next global monetary "scare" (should be hitting around the end of this year) expect to see the price of gold climb into the $3K to $5K USD per troy ounce range!
What has any of this to do with amateur watchmaking? Absolutely nothing! But, if one does have any gold jewelry, I'd advise you to hang onto it. It could, literally, make the difference between you and your loved ones eating and not eating sometime in the not too distant future!