8 o'clock. The only one watch (I am aware about) that has a crown on 8 o'clock is Dievas Vortex and at the moment of writing this post it's only available for pre-orders. Looks like extremely rare position (I really never came around it until today), but is very cool.
- Dievas Vortex
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See the complete list of crowns on watches here in my blog.