Oh boy, product photography can be hard, even with a simple product, that is not too glossy and generally looks good. Most of the time you need to have multiple light sources, knowledge of the light, blocking the light, distances, angles and all... While this is not actually the original focus stacking, similar but entirely different topic, it's more about masking out the parts you do not want in the final composition.
The only way to go then is image stacking, which means taking multiple shots of the same image, placing you light source in different places and then aligning your shots in post production software, lets say Photoshop.
The raw files usually do not look very good by itself, so you make adjustments to one image, and then when working on another raw file you apply from previous conversion. Shots would probably still look different, intensity of light might be too much or too low, so you make needed micro adjustments.
And you are pretty much done. Just a quick tip: By no means move your camera or the object, if you bump into it accidentally, and move either piece, you will have hell of a job aligning parts perfectly.
Once you have an assembled image, you can flatten the layers into new one: Ctrl+Alt+Shift+E and perform the rest creative adjustments that you see fit. I've added some grain for the final image for example. It not just looks cool for me but also helps to hide that nasty moire on the background that appears after extensive manipulation of the image, especially on 8bit files.
Always try to go extra mile, in your creativity. This watch considering it's cheaper price range is targeted to teenagers who are 16-17 years old, hence numbers 16 and 17. Full battery indicator of course :) And who does not want to be number 1, when 21 year old at the age of 16-17? And without a doubt everybody loves Saturdays!!! But of course, stay calm, and keep your heart rate low. It took me some time to get all of those parameters in order without moving the watch too much! (is this haiku?) All those small details might seem irrelevant, but it works on a subconsciousness level.
I am splitting my rewards 50%/50% in order to accumulate some STEEM in order to buy some ENG to create my own coin and integrate it with my website BeScouted for the photographic community.