Ceramic is considered among one of the hardest class of manufacturing materials, hence the engineering process is complex to deliver a generally favoured and more durable material than other metals. Indeed, it is difficult to scratch ~ in the manufacturing process, Ceramic is pressed and moulded into design. The pre-formed pieces are then baked at an extremely high temperature before it is cooled and finally milled into the desired shape and polish. However, please note that while ceramic is extremely durable and has a harder surface than any traditional watch metal, such as silver or gold or steel and have great resistance to scratches (even so far to be justifiably proclaimed as scratch-proof) and common damages, due to its molecular structure it can be brittle and vulnerable to shattering if it falls onto a hard surface from a few feet or more.
Ceramic watches’ ability to withstand scratches will also ensure they will not show signs of wearing, even after years.
As pre-formed pieces are baked at an extremely high temperature before it is cooled and finally milled into their desired shapes and polish, Ceramic is also a material that is unaffected by the ultraviolet rays produced by the sun, meaning that their colors won’t fade, can withstand chemical erosion and is anti-magnetic.
Because of the reasons highlighted above, Ceramic is commonly used in sport watches as while it is proven to be resilient to scratches, it is actually also fairly lightweight (similar to aluminium). This quality promotes more comfort over other metal watches, thus their properties will generally add to the quality and price of a metal watch.