Well, of course this is no invitation to our valued visitors to bare their buttocks (for more information on this kind of activities, see: www.moonamtrak.org
)!
Instead, I would like to see the rear sides of your watches: be it movements visible through displaybacks, or massive steel or gold casebacks. Don't hesitate to show us watches other than Ulysse Nardin; a nice backside always deserves to be shown!
I start with this fine depiction of the San Marco lion:
Regards,
Marcus