Meet OCTA | New Factory, Some Familiar Faces?
OCTA debuts with Royal Oak references: the 15500, 15510, 26240, 26331 and the 15407 openworked series.

Another factory name to learn. At this rate, the watch box needs a glossary.
OCTA is stepping into the Royal Oak scene, and the name may be newer than the people behind it. Early reports link the operation to former APSF people, parts, and projects. How much of that carries over is still being pieced together, but the connection is worth watching.
The attention grabber is the Royal Oak Openworked 15407, arriving with an advertised free-sprung movement. On a skeleton watch, that matters: you’re staring straight at the mechanics, so there’s nowhere for an obvious regulator arm to hide. It doesn’t automatically mean a faithful double-balance setup, though. Different claim, different conversation.
And a better-looking movement still needs a good case and bracelet around it. Bezel fit, sharp transitions, clean brushing, and links that move comfortably—that’s where OCTA will have to earn its reputation.
An interesting entrance, especially for anyone wondering what would fill the APSF-shaped hole. I’m curious. My wallet has requested more evidence.
One detail worth watching: sellers claim OCTA’s 4302-type movement is Shanghai-made, with a true free-sprung balance regulated by counterweight screws on the balance wheel and a rotor running on a steel ball bearing. By the same accounts, the Dandong-made 4302 used by ZF and VSF only looks free-sprung, with an index regulator hidden underneath, though its rotor reportedly runs on white ceramic ball bearings, which those sellers rate as the better bearing. None of this has been verified by the community yet. Owners who want to check can look at the balance itself: adjustment screws on the rim point to a true free-sprung setup, while a visible regulator points the other way. We’ll update this once owners confirm what’s actually inside.




