Audemars Piguet · Family: Royal Oak
The Audemars Piguet Royal Oak "Jumbo" Extra-Thin Openworked ref. 16204XT.OO.1240XT.01 reinterprets the original "Jumbo" in titanium with an integrated bracelet featuring BMG (bulk metallic glass) links, fully skeletonized to expose Calibre 7124. Cazador has no verified price observations yet. Its differential: it displays only hours and minutes, with no seconds or date, prioritizing an unobstructed view of the openworked movement over added functionality.
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The original Royal Oak "Jumbo," reference 5402 designed by Gerald Genta in 1972, is the piece that gave rise to the entire family and to the luxury steel sports watch category itself. The Extra-Thin Openworked execution revisits that original silhouette — a 39mm case, the same as the 5402 — and reinterprets it with two distinctive elements: a titanium case and a fully skeletonized movement that reduces the dial to its bare minimum, exposing the full architecture of the caliber.
The most singular element of this reference is its bracelet: integrated in titanium, it combines titanium links with BMG links — bulk metallic glass, an amorphous alloy Audemars Piguet uses on some of its more technical executions for its hardness and distinctive finish, unlike conventional polished titanium. The clasp is a triple-blade folding design.
Under that openworked dial sits Calibre 7124, an automatic movement with 31 jewels beating at 4Hz with a 52-hour power reserve, at 29.6mm in diameter. Unlike most Royal Oak Jumbo executions, which add central seconds or a date, this version limits itself to hours and minutes — a decision that clears the dial and lets the caliber's skeletonized architecture take center stage.
At 50 meters of water resistance, the 16204XT.OO.1240XT.01 keeps the daily-wear sports-watch profile typical of the Royal Oak, though its skeletonized construction and BMG finish position it as one of the more technical, less rough-use-oriented executions in the Jumbo catalog. We don't have a verified launch year for this specific reference in the sources consulted, so we avoid stating a date without documented backing.
As of this writing, the 16204XT.OO.1240XT.01 remains in Audemars Piguet's current catalog within the Royal Oak family.
Cazador has no verified PricePoint observations for this reference, so we cannot publish a reliable market range.
BMG stands for bulk metallic glass, a material Audemars Piguet combines with titanium in this execution's bracelet links for its hardness and distinctive finish.
Only hours and minutes, with no seconds or date — a design choice that clears the dial to better showcase the skeletonized Calibre 7124.
39mm, the same diameter as the original reference 5402 designed by Gerald Genta in 1972, the "Jumbo" that gives this execution its name.
Calibre 7124, an automatic, openworked movement with 31 jewels, 28,800 vibrations per hour, and a 52-hour power reserve.
It's rated to 50 meters, enough for daily wear, consistent with other Royal Oak Jumbo executions.
We don't have a verified launch year for this specific reference in the sources consulted, so we avoid citing a date without documented backing.