At 49.4 mm in diameter and 16.32 mm in height, the white gold reversible case carries one of watchmaking's most complex movements. The manually wound Caliber 300 GS AL 36‑750 QIS FUS IRM delivers grande and petite sonnerie, a minute repeater with classic gongs, a date repeater, and an alarm with time strike — each function accompanied by dedicated displays including strikework mode, alarm on/off, strikework isolator, and both movement and strikework power-reserve indications. An instantaneous perpetual calendar tracks day, date, month, and leap-year cycle by hands, while a four-digit year aperture, moon phases, a second time zone with day/night indication, and a 24-hour and minutes subdial complete the calendar side.
Both dials are fashioned from ebony black opaline over an 18K solid gold dial plate. The time side features hand-guilloché hobnail patterning and gold applied Breguet numerals, while the calendar side presents the same deep opaline ground in a cleaner layout. The gem setting is exceptional in scope: 96 baguette-cut sapphires totaling 10.8 carats line the bezel on the time side, and 291 baguette-cut diamonds totaling 20.54 carats embellish the bezel on the calendar side and the case itself — 118 baguette-cut sapphires (11.9 cts) and 291 baguette-cut diamonds (20.54 cts) in all.
The watch is worn on a shiny black alligator leather strap with square scales and hand-stitching, fastened by a fold-over clasp set with 22 baguette-cut sapphires totaling 1.1 carat. The case is humidity- and dust-protected. Crown positions are indicated (R A H), and the strikework isolator allows the chiming functions to be silenced independently.
