Waltham 18 size 7 jewels Open Face Fahys Oresilver Pocket Watch 1883. S X 4 p o n s 7 P o r 0 e d R 8 7 T I. Or Best Offer +C 68.27 shipping. VERY NICE WORKING WALTHAM POCKET WATCH FAHYS CASE MONTAUK.
Vintage American Waltham Pocket Watch With Hunter Case, 15 Jewels, Model 1883, Size 18, Fahys Monarch Coin Silver Case. This 18 size watch and is in a Fahys Coin Silver No. This American Waltham Crescent Street 21 Jewel Railroad grade open face case pocket watch was in his collection.
These days, solid-gold cases have become even more scarce because so many of the large gold cases have been sold or melted-down for their gold-value (a practice we abhor and discourage, by the way). In fact, it is estimated that only about 5% of cases produced were solid gold. There were far more gold-filled cases made than solid-gold "karat cases". Solid Gold Watch CasesIf your vintage pocket watch is in a gold-colored case, odds are pretty good that your case is gold-plated or gold-filled, or even just gold-colored metal. 2k followersWhat metals were commonly used to make watch cases? Is every gold-colored case watch case made of gold? Are all silver-colored watch cases made of silver? Answers to these and many other questions about watch case materials can be found below. France1978 has uploaded 24168 photos to Flickr.
Gold must be mixed or "alloyed" with other metals to make it hard enough to be usable. Pure gold (100%) with no other metals added is called 24-karat, but pure gold would be much too soft to be useful as a metal for making watch cases. Solid-gold means the case is gold all the way through. So if you have a vintage watch that's housed in a solid-gold case, consider yourself lucky!It's important to understand the difference between "solid-gold" and "pure gold".
Markings on the case are sometimes ambiguous, and counterfeit or "upgraded" assay marks, while certainly not common, are known to exist. Proper case-marks are usually a good indication of gold-content, but gold-testing is advised if you want to be sure. Gold Case MarkingsIf a watch case is solid-gold it will usually be hallmarked or stamped with a karat symbol or assay mark, like "WARRANTED U.S. Most solid-gold watch cases sold in the USA were 10K - 14K (41.6% and 58.3%, respectively). Gold coins are about 22K (91.6%), and the highest purity typically found in jewelry or watch cases is 18K (75%) which was fashionable in Europe.
If your Keystone case is marked "J. Boss" watch cases were the first widely adopted and commercially successful gold-filled watch cases, and are still commonly found on vintage watches today. Although James Boss certainly didn't invent the process of making rolled gold plate, Keystone "J. Below are examples of markings on solid-gold watch cases.James Boss, an early partner in the company that was to become the Keystone Watch Case Company, is credited with the development of the gold-filled watch case which was patented in 1859.
The gold layers could consist of 10-karat, 14-karat or 18-karat gold. The composite 3-layer bar was then rolled through high-pressure rolling mills until the desired thickness was reached. The 3 bars were soldered together under high pressure and high temperature in specially constructed ovens. After Keystone achieved success with gold-filled cases, many other case manufacturers began producing gold-filled cases.Gold-filled cases were made by sandwiching together 2 bars of gold (typically about 1/2" thick) on either side of a bar of base-metal, usually brass or brass-alloy (typically 3/4" thick).
In general, a longer guarantee implied a thicker layer of gold. Note that the year-guarantee was related to the thickness of the gold layer, not to the karat-quality of the gold used in the gold layers. If your case is marked "Warranted 20 Years" or "10 Year Guaranteed" or any other reference to a number of years or guarantee, then that is a sure indication that it is a gold-filled or gold-plated case. A case that's marked "14K Warranted 20 Years" meant that the gold-filled case was made with a layer of 14K gold, and was guaranteed that the gold-layer would not wear through to the brass for a period of 20 years. As such, gold-filled watches do not have any significant gold value.SPONSORED ADVERTISEMENTS "Guaranteed" and "Warranted" CasesGold-filled cases were often marked with a guarantee, another innovation credited to James Boss, which specified a number of years that the case was guaranteed to wear.
Some common names for nickel-alloys and the companies that employed them are shown below: SilverodeNickel-alloy cases were less expensive than silver and were very durable (much harder than silver), and many fine examples survive today. Each manufacturer had their own unique name, and their own formulation, but cases were usually a mixture of Nickel (45%), Copper (54%) and Manganese (1%).Manufacturers often chose names for their nickel-alloy cases which were suggestive of silver content, but which actually contained no silver. Nickel-alloy cases look similar to silver, and were produced under many names by American case manufacturers. After 1924, gold-filled cases were simply marked "Gold-Filled" as seen below.In addition to gold and gold-filled cases, manufacturers produced cases from many other materials as well. If your watch case says"Guaranteed for x Years" you know that it was made prior to 1924.
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