A small crash course on Rolex gold mainly uses 18 carat gold for its watches, which has a purity of 750 ‰ (thousandths) of pure gold, that is, the remaining 25% consists of other elements such as silver, copper, platinum or palladium, depending on the alloy you want to achieve. An 18 karat gold item contains 75% gold and 25% other metal alloys. When you start to be below 12K, jewelry may no longer be considered “fine jewelry”, since the gold content is less than 50%. This would mean that the piece is made of more metal alloys than gold.
You will be able to mail your watch to them and have a check in hand shortly after receiving the gold in your possession. For this reason, you don't hear of single-digit “carats of gold” because such a mixture could hardly be called gold. Most Rolex watches are made of stainless steel, but a full gold Rolex watch makes the watch even more unique and gives it considerable weight. This is approximately 150 grams of solid 18 ct gold in a Rolex GMT-Master II, including the case and bracelet.
When you look back in time, if you had bought one in the previous days and then compared it to today's gold prices, you could sell the watch solely for its gold value and still not lose money. If you only compare a gold Rolex watch to the same stainless steel watch, it's obvious that the price increase of a gold watch is dramatically higher than the real cost of gold itself. All luxury watch brands charge a significant premium for their gold watches, and even wedding rings are much more expensive than the real value of metal. A quick estimate of your jeweler should give you a good idea of how much gold your watch contains.
If you compare a stainless steel Rolex to a full gold Rolex, you'll notice that the price varies dramatically. The best explanation of why Rolex watches in gold cost much more than one in steel is that it is the way in which the luxury market quotes its products. Over the years, Rolex has developed a number of different gold materials that match what Rolex is looking for. For example, a full gold Rolex Sky-Dweller weighs considerably more than a full gold Rolex Day-Date.
Make sure there are gold marks and double check both marks, on the clasp and on the watch case.