Revolo with stainless steel case and sapphire glass. This watch is an example. It can be bought as is. You can also design your own. Revole watches all have a sapphire glass. You can choose between a Swiss quartz (battery) movement or a Japaneese automatic or a Swiss automatic. This one has a Japaneese made (Miyota) automatic. The back cover has a mineral glass so you can see the movement. The watch has a stainless steel bracelet. It comes with 2 years guarantee from Revolo.