Titanium

What is titanium?

Titanium is a metallic chemical element with the symbol Ti and atomic number 22. It is hard, shiny and strong. Its density is about 4.5 g/cm³, and the metal is known for good corrosion resistance. Many technical products use titanium alloys, so the exact composition can differ from one object to another.

Titanium in watches and collectibles

Titanium is often described as a lightweight metal in modern watches and other practical objects. OBA’s stock includes wristwatches described as titanium models. Such a description is a useful clue, but it does not necessarily identify the alloy, surface treatment or material of every component. See also the glossary entry on wristwatches.

Titanium is not titanium dioxide

Metallic titanium should be distinguished from titanium dioxide (TiO₂), a chemical compound used, among other things, as a white pigment in paints and other products. The presence of a titanium-based pigment or coating does not mean an object is made of titanium metal.

How can the material be assessed?

Colour and low weight may suggest titanium, but they do not prove it. Check maker information and technical specifications, and consider the whole object: the case, bracelet, screws and other parts may use different materials. If necessary, a specialist can examine the material with suitable analytical equipment. Read more about X-ray fluorescence (XRF); a measurement must be interpreted in light of where and how it was taken.

Source and further reading

• Royal Society of Chemistry: Titanium – element data, density, properties and uses.