Paul Gerber's Calibre EPR 52 ( Named after Einstein, Podolsky & Rosen) is a titanium cased mechanical moon-phase with electromagnetic (Quartz drive with a 3 year PR). Ochs und Junior orange strap is exactly the same as the original black version. A lovely...
It will be a TRUE representative of the EPR paradox, though, if you can change the settings on the moonphase BY changing the settings on the watch EVEN THOUGH there's no physical connection between the two.