Constant Force Tourbillon 11 Platinum Edition

The Arnold & Son Constant Force Tourbillon 11 Platinum Edition is a 41.5 mm timepiece crafted in Pt950 platinum, featuring a domed sapphire crystal with anti-reflective coating on both sides and a sapphire case back. Its dial is made of 18-carat yellow gold, hand-engraved in the brand’s signature “fern” pattern, complemented by a concave white opal hour subdial.

At its heart lies the manual-winding A&S5219 calibre, a mechanical movement equipped with a patented constant force mechanism and a one-minute tourbillon, delivering hours, minutes, and true-beat seconds. The movement measures 33 mm in diameter and 10.48 mm in height, operates at 3 Hz (21,600 vph), and offers a 100-hour power reserve. Finishing includes gold bridges with polished angles, flame-blued components, and an engraved plate honoring John Arnold and Abraham-Louis Breguet. Water-resistant to 3 bar, the watch is paired with a hand-stitched midnight blue leather strap and a platinum folding clasp.

The Arnold & Son Constant Force Tourbillon 11 Platinum Edition is a 41.5 mm timepiece crafted in Pt950 platinum, featuring a domed sapphire crystal with anti-reflective coating on both sides and a sapphire case back. Its dial is made of 18-carat yellow gold, hand-engraved in the brand’s signature “fern” pattern, complemented by a concave white opal hour subdial.

At its heart lies the manual-winding A&S5219 calibre, a mechanical movement equipped with a patented constant force mechanism and a one-minute tourbillon, delivering hours, minutes, and true-beat seconds. The movement measures 33 mm in diameter and 10.48 mm in height, operates at 3 Hz (21,600 vph), and offers a 100-hour power reserve. Finishing includes gold bridges with polished angles, flame-blued components, and an engraved plate honoring John Arnold and Abraham-Louis Breguet. Water-resistant to 3 bar, the watch is paired with a hand-stitched midnight blue leather strap and a platinum folding clasp.