Arnold & Son / Constant Force Tourbillon
Arnold & Son Constant Force Tourbillon
Collection profile
Arnold & Son’s Constant Force Tourbillon line is a chronometry-led high-complication family combining a patented constant-force mechanism, dead-beat seconds and a tourbillon regulator, explicitly tying modern wristwatch construction to John Arnold’s marine-chronometer legacy and his historical link with Abraham-Louis Breguet.
Why it matters
This collection is one of Arnold & Son’s clearest statements of its chronometry theme. Rather than using a tourbillon as visual theatre alone, it couples the regulator with a one-second constant-force device that also drives dead-beat seconds, linking contemporary engineering to historical marine-chronometer ideas.
Key references
Collection timeline
- 2015 — Arnold & Son’s Constant Force Tourbillon concept was already established in watch media coverage, highlighting the combination of constant force, tourbillon and dead-beat seconds.
- 2024 — Arnold & Son launched the Constant Force Tourbillon 11 Yellow Gold as a limited edition of 11 pieces to conclude celebrations of John Arnold’s 260-year legacy.
- 2025 — The line expanded with a Constant Force Tourbillon 11 Platinum version, which Arnold & Son lists among current novelties and all watches.
FAQ
What complications define the Constant Force Tourbillon collection?
The core package is a constant-force mechanism paired with a tourbillon, plus true-beat or dead-beat seconds on the current Constant Force Tourbillon 11 models.
Why is the collection called Constant Force Tourbillon 11?
The current modern executions are limited editions of 11 pieces, and Arnold & Son frames them as tribute watches linked to John Arnold’s legacy and chronometric history.
More from Arnold & Son
- UTTE (Ultra Thin Tourbillon) — Arnold & Son’s UTTE, now presented as Ultrathin Tourbillon, is the brand’s ultra-thin flying tourbillon family, first launched in 2013 and defined by an off-centred display, marine-chronometer-inspired layout, and one of the slimmest hand-wound tourbillon calibres of its era.
- HM Perpetual Moon — Arnold & Son Perpetual Moon is the brand's astronomy-focused moon-phase collection, spanning 41.5 mm and 38 mm precious-metal references with large moon displays.
- TB88 — The TB88 is Arnold & Son’s 2012 deadbeat-seconds chronometer, named for its symmetrical “double eight” architecture and built as a modern wristwatch tribute to English marine chronometer construction associated with John Arnold.
- Longitude — Longitude is Arnold & Son’s chronometry-led sports watch family, explicitly inspired by John Arnold’s marine chronometers and the historical quest to calculate longitude at sea, with COSC-certified manufacture movement A&S6302, a 42.5 mm titanium case, and power-reserve plus large small-seconds display.