Not quite what I meant. Lots of watch faces play on the fact that 12 is divisible by 2, 3, 4, and 6. For example, take this [1] Ulysse Nardin watch. It has six

Not quite what I meant. Lots of watch faces play on the fact that 12 is divisible by 2, 3, 4, and 6. For example, take this [1] Ulysse Nardin watch. It has six nice "hexa"-markings (a common theme among watches). Some other watches go for the cross-hair (division by 4). Neither one of the styles would be possible with the 10 hour system. Note: those watches do not reflect my personal taste, they were just the easiest to find. [1] http://www.ulysse-nardin.ch/ulysse-nardin-webseite/uploadfiles/4d551f00-cda0-4bd3-97df-bb43fe6ed11b.jpg http://www.ulysse-nardin.ch/ulysse-nardin-webseite/uploadfil... [2] http://www.tissot.ch/imageslib/cache/2011/png/image225png_T002_520_17_051_01_png.png http://www.tissot.ch/imageslib/cache/2011/png/image225png_T0...