Jacquet-Droz Chrono Monopoussoir

18 carat white gold case (43 mm) equipped with a Jaquet Droz 2688M self-winding chronograph mechanical movement with double-barrel, 22 carat oscillating weight and 40-hour power reserve. Enamel dial with hours and minute counters, centre sweep chronograph seconds, off-centre hours and minute sub-dial at 12 o’clock, and seconds sub-dial at 6 o’clock, blued steel hands. Glare-proof sapphire crystal, alligator strap with gold ardillon buckle, water-resistant to 30 metres.

http://www.jaquet-droz.com/