Jaeger-lecoultre, Master Tourbillon for Extreme Sports, Model: Q1762470, Automatic mechanical men's watch, 18K rose gold, 46.3mm diameter, GMT. The tourbillon function features a deep grey matte dial with large Arabic numeral hour markers that are highly recognizable. The 6 o 'clock position is hollowed-out to reveal the brand's classic tourbillon mechanism, which can counteract the influence of gravity on the movement and ensure accurate timekeeping. This is a core manifestation of high-end watchmaking craftsmanship. At the 12 o 'clock position, there is a GMT dual time zone, with the outer ring surrounding the 31-day date scale, which combines aesthetics and practicality. A complete set of blank cards with accessories, weighing over 190 grams, exudes an air of dominance.