The AP Royal Oak Flying Tourbillon 37 mm 26660ST super clone (ref. 26660ST.OO.1356ST.01) pairs a compact steel case with a plum-purple dial and an open tourbillon at 6 o’clock. Audemars Piguet launched the genuine in 2022 as the Selfwinding Flying Tourbillon Extra-Thin “RD#3”, its third R&D project and the brand’s first selfwinding flying tourbillon in a 37 mm case, only 8.1 mm thick. Our watch follows that layout: a purple Petite Tapisserie dial with a fine square grid, white baton markers, luminescent Royal Oak hands, no seconds hand and no date, and the cage turning in a round aperture low on the dial. The case and bracelet are stainless steel, like the genuine.

Royal Oak Flying Tourbillon 26660ST Specifications

• Reference: 26660ST.OO.1356ST.01
• Collection: Royal Oak Selfwinding Flying Tourbillon Extra-Thin (RD#3)
• Case diameter: 37 mm
• Case thickness: 8.1 mm on the genuine
• Case and bracelet: stainless steel
• Dial: plum (purple) Petite Tapisserie, white applied hour markers, luminescent Royal Oak hands
• Functions: hours, minutes, flying tourbillon at 6 o’clock
• Movement: clone Cal. 2968 (genuine: selfwinding, 3 Hz); clone tourbillon; function video on request
• Power reserve: about 48 hours (genuine Cal. 2968: 50 hours)
• Water resistance: 50 m (not for swimming)

26660 37 mm vs 26730 41 mm: Which Royal Oak Flying Tourbillon?

The two selfwinding flying tourbillons differ more than the 4 mm in diameter suggests. The genuine 26660 is 37 mm and 8.1 mm thick, runs on the ultra-thin Calibre 2968 with 50 hours of reserve and wears the finer Petite Tapisserie; the 26730 is 41 mm and 10.6 mm thick, uses the Calibre 2950 with 65 hours and carries the larger Grande Tapisserie grid. On the wrist the 37 mm sits flat like a dress watch, while the 41 mm has the full Royal Oak presence. For wrists under about 17 cm or for wearing under a shirt cuff, take the 26660; larger wrists should look at the 26730.

Is a 37 mm Royal Oak tourbillon replica too small for a man?

Not necessarily: the broad eight-screw bezel and the bracelet flowing straight out of the case make it look bigger than the number suggests, and it suits wrists from about 15 to 18 cm.

Does the tourbillon on the 26660 super clone really turn?

Yes, the cage at 6 o’clock is a clone tourbillon that rotates while the watch runs, and we send a function video on request so you can check it before you order.

Other Royal Oak tourbillon versions in stock: a larger 41 mm Flying Tourbillon 26730OR, rose gold tone and smoked blue, the blue-dial steel Tourbillon Extra-Thin 26510ST and the Tourbillon Extra-Thin 26522CE in black ceramic. See the full AP Royal Oak replica collection.