Why on Earth Omega watches would call a ceramic bezel "Liquidmetal" is a mystery to me. It not only is ceramic not liquid, but it isn't a metal. Well, it is liquid-like when being formed, but you get the idea. Ceramic as used on watches is actually made from glass as I understand it. It used to be that most bezels on dive watches were made from aluminum. Not sure why that is, but it is still very common. One approach to "luxurize" the bezel was the Blancpain approach of doing a bezel with a sapphire crystal over it. This prevented the scratching that people hate. This is really the problem with aluminum. Sure you can replace the bezels. But it is a pain, and not something you want to do when paying a lot for a diver's watch.
Turns out liquid metal are something else, not the ceramic part of the watch. Liquidmetal seems to be a special titanium alloy that has the manufacturing process of plastic. Thus it is very malleable. Omega uses Liquid metal at least in parts of the bezel to combine with the ceramic for the amazing seamless look. The makers of liquid metal say that it is a "metallic glass." Something I've certainly never heard of. In addition to titanium, it has zirconium, nickel, copper, and beryllium. Lots of companies uses the stuff when metal needs to be formed in the right way, but simply don't want to endure the very difficult process of using tradition methods to get the beautifully seamless look that you can see here on the bezel of the Omega Seamaster Planet Ocean replica Liquidmetal watch.
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