Case is 42.3mm with a thickness of 13.9mm, 18k rose gold, sapphire crystal front and back, screw-down crown, and water resistant to 100m. Dial is solid gold with a hand-guilloché “Quai de l’Horloge” pattern beneath translucent blue lacquer, creating a blue-to-navy gradient that changes noticeably depending on the light, with a satin-finished chapter ring, applied gold Breguet numerals, two balanced sub-dials for running seconds and elapsed minutes, and date at 6 o’clock. Movement is calibre 582QA, automatic, 28,800vph, with flyback chronograph, silicon balance spring and inverted silicon anchor, visible through the sapphire caseback. Power reserve is 48hrs. Priced at CHF 45,000 on rubber strap or CHF 71,100 on rose gold bracelet.