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here in a unique configuration of steel case
Depression of the button within the crown opens its hinged caseback
the tone of this dial is a warm cream
one of just a handful made
0 is one of the most dramatic and beautifully engineered chronograph calibres ever devised
15407ST, Royal Oak Double Balance Openworked, Steel 25860ST here in a unique configurationA 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
US$ 999.38
US$ 99.00
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US$ 33.89
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