Jaquet-Droz, Large Seconds Series, Model: J013034240, 18K white gold material, 43mm diameter, continues the brand's signature "8" shape layout, with the tourbillon frame at the 12 o'clock position, the time and date display at the 6 o'clock position. The black dial is decorated with Geneva stripes, paired with two inner bezels made of sapphire, equipped with the self-produced 25JD automatic self-winding tourbillon movement, featuring a single winding box, providing a power reserve of up to 7 days (168 hours), single watch.