F.P. Journe | Octa Jour et Nuit, A limited edition platinum wristwatch with ruthenium dial, ruthenium-coated brass movement, date, power reserve and day and night indication, Circa 2003 | Octa Jour et Nuit 限量版鉑金腕錶，備釕金屬錶盤、釕金屬塗層銅製機芯、日期、動力儲備及晝夜顯示，約2003年製

As a dial material, ruthenium has been reserved for the most important F.P. Journe models and is highly sought after by collectors today. Produced between 2003 to 2004, the present Octa Jour et Nuit is limited to 99 pieces only and displays an exceptional dial design with its asymmetrical beauty. The right side of the dial exhibits the time only functions, while the left side of the dial expresses its complicated personality, elegantly laying out the date, day and night and power reserve indication. The highlighted material - ruthenium, offers a delicate grey texture on the dial surface, reflecting light in a noble and extremely sophisticated way. Aside from the dial, the brass movement calibre 1300.3 is also plated with a coating of ruthenium. The automatic movement features a 22k gold rotor and a wonderous spring barrel which provides approximately 120 hours of power reserve. Exquisite in all ways, the present watch is an architectural and horological phenomenon.