Arnold & Son
Calibre A&S8320
Manual winding
Specifications
- Maker
- Arnold & Son
- Type
- Manual winding
- In-house
- Yes
- Power reserve
- 100 h
- Frequency
- 21,600 vph (3 Hz)
Sources
- Official Arnold & Son retrieved October 24, 2026
Maker's data sheet
Figures Arnold & Son publishes for the movement.
- Jewels
- 29
- Movement diameter
- 32 mm
- Movement height
- 3.3 mm
- Power reserve
- 100 h
- Frequency
- 21,600 vph (3 Hz)
- Official Arnold & Son retrieved October 25, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Arnold & Son Ultrathin Tourbillon Skeleton 1UTBR.Z01A.C246R | 41.5 mm | 8.4 mm | — |