I want to take some product photography of watches, much like the Apple watch. What are the steps and tools to reproduce this?
And also from the side
As dpollitt mentioned, it's actually quite complex. There's no "set your lights up this way" to achieve the look that is been aimed at, the setup will vary massively with the product and materials you're lighting. Having said that, there are tools that make this process much more possible assuming you have sufficient patience for it because it can take a lot of hours. In any event:
Ultimately the goal is to light what you need and avoid reflections that you don't desire (i.e. you and the camera). I don't tell you all this to scare you away, you can acquire a fair bit of the things you need for relatively low prices, lots of DIY work out there in this area. Practice makes perfect and the photographers shooting these products have has a lot of practice.
If you are interested in this sort of photography, get yourself a copy of the book "Light: Science and Magic". It deals with complex lighting situations but for this, you need to deal with the seemless white background, the apparent lack of support, releflection control and you will need multiple lights at various distances, reflectors and anti-reflectors, diffusers and gobos ('go-betweens' - usually black card that 'go between' a light and the subject to prevent unwanted reflections).