Thank you so much for your comments!!
Regarding the photo, I dismounted several watches in order to find some interesting parts. Unfortunately it was not so easy as I expected. Most of them, just include a battery, and 2 or 3 coils. So not very beautiful. Finally I found this Breitling Montbrilliant Legende, a really expensive watch with automatic movement. The real one costs several thousand dolars, but this was a fake one. I was expecting to find a cheap and low quality mechanism on the inside, but when I dismounted the cover I was gladly surprised with what I found. The rest was just a matter of getting a solid tripod and my favourite macro lens... ;-)
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