New releases – Arnold & Son Constant Force Tourbillon 11, Platinum Edition

This series of 11 pieces pays tribute to the friendship between John Arnold and Abraham-Louis Breguet. Its sapphire case back reveals the A&S5219 calibre, whose architecture is inspired by the first regulator with tourbillon created by Abraham-Louis Breguet. Visible on the dial, between the main gear train and the tourbillon, the patented constant force mechanism regulates the energy from the barrels, eliminating any variations in torque that could disturb the balance’s oscillation. The solid gold dial is ornamented with a hand-guilloché surface in the “tremblé” style, evoking the fern-covered moors around Tintagel in Cornwall – the birthplace of John Arnold. The tourbillon cage can be seen under an 18-carat gold bridge and rotates in exact, one-second increments. The platinum case measures 41.5 mm in diameter.