An Horological Study in Color: Speake-Marin Presents the Openworked Tourbillon Purple Hour
Driving the watch is the in-house automatic caliber SMA05, equipped with a tungsten micro-rotor, beating at 3 Hz and offering a power reserve of 72 hours. Through the sapphire case back, the movement reveals meticulous hand-finished details, including black-rhodium bridges decorated with Geneva stripes, and a central PVD-coated bridge framing the gear train in striking […]