Housed in a 36mm 18 kt yellow gold Oyster case, reference 128398TBR-0010 features a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown that keeps the watch waterproof to 100 metres. The bezel is set with diamonds, while scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The champagne-colour dial is fitted with index hour markers, and the instantaneous day and date displays appear in separate apertures with a secure rapid-setting mechanism. The President bracelet in 18 kt yellow gold is built from semi-circular three-piece links and fastens with a concealed folding Crownclasp.
Inside beats the Calibre 3255, a perpetual mechanical self-winding movement certified as a Superlative Chronometer to a precision of -2/+2 seconds per day after casing. A paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, and a power reserve of approximately 70 hours round out the movement's technical profile.
