Arnold & Son announced the Constant-Force Tourbillon 11 Yellow Gold in 2025. This rare watch, limited to just 11 pieces worldwide, also features details that symbolize the relationship between John Arnold and Abraham-Louis Breguet.
Arnold & Son's new 2025 watch, the Constant-Force Tourbillon 11 in Yellow Gold
Arnold & Son was founded in 2001 by reviving the name of John Arnold, an 18th-century British watchmaker, and his son, John Roger Arnold. The collections inspired by the watches made by these legendary watchmakers are full of charm that only those in the know will appreciate.
Arnold & Son has now announced the Constant-Force Tourbillon 11 Yellow Gold, a limited edition of 11 pieces worldwide featuring a constant-force mechanism. The watch features an 18K yellow gold Grand Feu enamel dial with an offset subdial at 10 o'clock and an opening at 5 o'clock that doubles as a small seconds dial.
Manual winding (Cal. A&S5219). 21,600 vph. Power reserve approximately 100 hours. 18K yellow gold case (diameter 41.5mm, thickness 13.7mm). Water resistant to 3 bar. Limited to 11 pieces worldwide. 129,800 CHF.
Visible through the opening at 5 o'clock is the constant-force mechanism, the watch's greatest feature. This patented constant-force mechanism, installed between the gear train and the tourbillon, is designed to smooth the energy transmitted from the barrel to the balance. While John Arnold previously used a fusee and chain system, this time the constant-force mechanism has been replaced with a constant-force mechanism. It's also worth noting that the anchor-shaped second hand, mounted on the same axis, is a deadbeat second, jumping once every second like a quartz movement. Not many watch brands use this type of movement in their mechanical watches.
The case is made of 18K yellow gold. The see-through back allows you to see the Cal. A&S5219, which features a matte finish like a pocket watch and an impressive large balance. This movement has two barrels and provides a power reserve of approximately 100 hours.
