review
The New, Ultra-Complex Blancpain Grande Double Sonnerie 15GSQ
The Blancpain Grande Double Sonnerie 15GSQ stands as the most intricate watch ever crafted by the brand, showcasing a remarkable chiming mechanism that includes a grande and petite sonnerie, a minute repeater, a flying tourbillon, and a retrograde perpetual calendar. Created over eight years, the watch consists of 1,053