F.P. Journe Tourbillon Souverain Ref. TN Boutique Rose Gold Black Dial

A black dial on a tourbillon is not an obvious choice, since the whole point of the complication is to be watched. The boutique version does it anyway, blackening the gold plate and leaving the carriage open at the lower left where it turns against a dark ground. Journe never listed these, and they went only through his own shops to clients already known there. The boutique dials are the scarcest way the reference exists.

Rose gold, on leather. A blackened gold plate carries whitened guilloché silver registers, with the time set off center and the tourbillon exposed below it. The dark surround makes the carriage the only bright moving thing on the face, which turns out to be the argument for the dial rather than against it. Journe retired the model in 2019, so nothing has replaced this configuration since and nothing is going to.