Three rotating cages
Primus uses three tourbillon cages supported by jewel bearings. Bexei gives their rotation periods as 30 seconds, 2.5 minutes and 12.5 minutes. The movement also provides a power-reserve indication. [1]
Specifications
Case
- Width
- 38 mm [1]
- Case height
- 46 mm [1]Manufacturer case height; not a lug-to-lug measurement.
- Thickness
- 17.9 mm [1]
- Lug width
- 22 mm [1]
Movement
- Architecture
- triple-axis tourbillon with jewel bearings [1]
- Power reserve
- 40 hours [1]Manufacturer specification.
- Functions
- triple-axis tourbillon; power-reserve indication; retrograde indication as stated by maker [1]
Strap
- Width
- 22 mm [1]
Sources
Specifications checked 2026-09-16.
- Primus Triple Axis TourbillonBexei Watches · Details, indications and model description