Silver-tone forged carbon case with fixed blue bezel and black rubber strap. Features a black dial equipped with luminous hands, Arabic numeral hour markers, minute outer track, and luminescent indices for enhanced visibility in darkness. Analog dial type powered by the Audemars Piguet Calibre 2326/2848 automatic movement containing 50 jewels, operating at a frequency of 28800 vph (5Hz), offering approximately 60 hours power reserve. Equipped with three sub-dials: one for 20-minute chronograph function, another for 10-minute countdown timer, and the third showing elapsed time up to 6 hours. Includes flyback complication, rattrapante split-seconds functionality, hour, minute, and small second hands. Scratch resistant sapphire crystal display window, screw-down crown, solid case back with octagonal shape measuring 44mm diameter and 14.3mm thickness. Secured by a tang clasp. Water resistant to 100 meters / 330 feet depth.
![Pre-owned Audemars Piguet Royal Oak Tourbillon Chronograph Blue Dial Mens Watch [25977ST-OO-1205ST-01]](https://cdn.lepodium.net/images/000/088/88074-2.jpg)
