15407ST, Royal Oak Double Balance Openworked, Steel 25860ST a dress watch to rival

a dress watch to rival any Calatrava in finish

one of just a handful made

the tone of this dial is a warm cream

it features a landmark 'soft reset' system through use of a centrifugal governor

here in a unique configuration of steel case

15407ST, Royal Oak Double Balance Openworked, Steel 25860ST a dress watch to rivalA ref. 15407ST, a world first Double Balance Openworked Royal Oak. The Double Balance couples two balance wheels on a central pivot, 180 degrees out of phase with each other. This counters positional errors while adding doubling the effective balance wheel mass. To highlight this accomplishment, the 15407ST is thoroughly hand finished on all bridges with a standard rarely seen today, not shy to an interior angle. This innovation is all wrapped in