This is a 3D watch design made available by LulzBot (click here for instructions).
The cuts of the watch are genuine watch pieces which needed to be ordered. The band and watch body were 3D printed in PLA on my Monoprice Maker Select 3D printer.
The model provided by LulzBot had a lot of problems due to missing faces and non-closed manifolds. I had a lot of problems getting it to slice correctly, even when using the recommended Cura LulzBot Edition. Eventually, after hours and hours of fiddling I succeeded in slicing it in Simplify3D.
Honestly it is such a simple design I could have spent less time if I had to design it from scratch. Oh well, live and learn.
P.S. It is also quite large by any standard. If I ever decide to do this again I will definitely design a smaller one.
UPDATE (June 2018): I suspect a few droplets of water got in and the watch has stopped working. Need to open it and see what needs replacing.