
Breguet · Movement
Breguet caliber 558SQ1
Ref. 558SQ1
The Breguet caliber 558SQ1 is a handwound movement with a 50-hour power reserve, beats at 18,000 vph, and carries 21 jewels.
Hand wound movement, engraved by hand. Running seconds on the tourbillon shaft. Compensating balance spring with Breguet overcoil. Pictured from dial side.
- Type
- Handwound
- Display
- Analog
- Power reserve
- 50 h
- Frequency
- 18000 vph
- Jewels
- 21
- Diameter
- 29.9 mm
- Complications
- Hours, Minutes, Skeleton, Small Seconds, Tourbillon Escapement

