Mechanical automatic, exclusive Dubois Dépraz calibre, 48 jewels.
Decorated and engraved rotor.
Central bridge and 4 chamfered, satin-finished seconds bridges.
Minute-wheel with Pierre DeRoche logo.
Hand affixed by a transverse pin.
4 retrograde seconds hands on gears, strip spring return.
Hours, minutes, seconds with retrograde function in 4 ten-second sectors.
Moving retrograde hand indicator.
Second time zone adjustable in half-hour increments.