Diggity said:

---

gotcha...I was confused by what you were talking about as well. You're looking for a sterling silver watch?

maybe James Avery?

---

Diggity said:

---

yeah, that was my mistake....I didn't watch the whole video

seems like a gimmick honestly. They're probably adding some sort of plating to keep it from tarnishing, which can wear off.

Seems like there's a reason most moved to SS.

---

Quote:

---

Many approaches have been taken to adjust the composition of silver alloys to make them more tarnish resistant, while retaining the physical properties of malleability and durability required for jewellery manufacture.
In 1912 pioneering work was being carried out by Mr Harold Turner of Messrs William Turner & Company the well-known gold and silver refiner of Sheffield. In 1922, this firm placed upon the market, under the name of 'Silanca', the first tarnish resisting sterling silver ever produced, but for certain commercial reasons and difficulties connected with its manufacture, Silanca was not taken into use.
In 1988 an alloy was patented in America, which requires the additions to silver-copper, silver-gold and silver-copper-gold alloys of at least one element of the following: chromium, tantalum, aluminium, titanium, or thorium, where the added amounts of these elements does not exceed 1.5 per cent weight as a substitute for silver. These elements were found to form a thin oxide layer, which was stable and did not affect the properties of the silver-based alloy. The elements were found to be self-healing, forming a layer of oxide and also reacting preferentially with sulphur to form sulphides, rather than formation of silver sulphide. In this way, tarnish resistance was improved.
Further patents followed; US Patent 5,039,479 describes the usefulness of the additions of silicon, boron and tin to an alloy. The preferred composition is 1.85 per cent zinc, 0.05 per cent indium, four per cent tin, 1.44 per cent copper, 0.01 per cent boron, and 0.05 per cent silicon. The composition described is sufficiently pure in silver to qualify as sterling silver. A similar approach is taken by US Patent 5,882,441, which describes a tarnish-resistant 4.5 per cent zinc, 2.9 per cent copper, 0.1 per cent sulphur alloy.
The addition of more noble elements (ie other precious metals) increases the cost of sterling silver, but is highly effective. US Patent 5,037,708 describes an alloy containing five per cent palladium, two per cent copper and 0.5 per cent indium or zinc. In this alloy some of the copper has been replaced by palladium to enhance tarnish resistance and corrosion resistance, and also to improve colour stability.
The addition of germanium to sterling silver is also noted to reduce tarnishing and fire stain. This alloy is a cadmium-free alternative to the two and four per cent cadmium bearing grades that have been used in the past. A similar composition was claimed by a German refiner in 1992. This refiner's alloy contained between 0.5 and three per cent germanium, the balance of copper to give 7.5 per cent alloy addition and 92.5 per cent silver to give sterling silver.
Quantitative research by Assay Office Birmingham has shown that many of these alloys are more tarnish resistant than traditional silver copper alloys. However, to date no one has come up with a guaranteed completely tarnish-resistant silver alloy suitable for jewellery. The researchers continue to apply their knowledge of science to fight against nature.

---

Quote:

---

Our unique Silver alloy meets the same quality standards as all our watch cases. The material is very stable and will only change in appearance minimally.

---

schmendeler said:

---

the silver intrigues me, don't see many silver watches.

am i the only one that thinks the gold diver looks like bronze?

---