The new Piaget Polo Perpetual Calendar Green Obsidian in a limited edition of only 18 pieces—individually numbered—is equipped with a 42 mm case in 18K white gold housing a striking dark emerald-green obsidian dial with a date indicator at 3 o'clock, a month and leap-year indicator at 12, the day of the week at 9 and the small moon phase display at 6 o'clock.
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Richard Mille draws inspiration from both the crystalline transparency of oceans and the grandeur of Gothic architecture, incorporating these influences throughout the movement, case, and decorative elements. The new fully skeletonized RM 75-01 Flying Tourbillon Sapphire functions as an ethereal sculpture, with each component distinguished by precise finishing that highlights the flying tourbillon and flying barrel.

Only eleven years after the launch of the Royal Oak in 1972, the brand was already making history by releasing the iconic watch Royal Oak Perpetual Calendar complication. Fitted at the time with a 39 mm case—like the original Royal Oak 'Jumbo'—and powered by the automatic calibre 2120/2800, the Royal Oak Perpetual Calendar has seen many variations, limited editions, and case sizes throughout its history.