The above image includes about 7 different exposures, all combined in Photoshop to create the look that I was after.
In this image of the Flud watch I got away with about 3 exposures.
And this one I used 6.
It's been a while since I've done product photography, but I'm glad it's something I can do relatively easily with not a lot of gadgets. Again, I did all of these shots with one flash.
I highly recommend this addition your lighting equipment. It gives you much higher quality of light for only about $50. And it folds down flat and fits into the laptop portion of your camera bag (I can carry this and my 5in1 reflector kit inside the laptop compartment).