The Audemars Piguet Royal Oak watch uses a ceramic matte and polished case, which is seven times harder than steel. It is equipped with an anti-glare sapphire crystal, a crown with an engraved “AP,” and a see-through case back. It features an ultra-thin 3.4 mm self-winding movement with a vibration frequency of 3 Hz, and the visible titanium flying tourbillon also has a power reserve of 50 hours, ensuring long-lasting performance.
With this watch, in addition to seeing the operation of the tourbillon at 6 o’clock, you can also hear its operation. You only need to bring the watch to your ear to hear the crisp ticking sound.
This AP perfectly interprets simplicity without being plain, and it looks great even if you replace the strap.
Carter –
band a bit larger but have not had any luck.