Data: Longines 23Z
- 17 jewels, manual wind, center second.
- Size: 10.5''' 23.3 mm.
- H: = 3.50 mm.
- N: = 18.000 A/h.
- Power reserve: 44h.
- Mainspring: 1,50 x 9 - 0.085 - 360 (Prima: 150H 36BA).
Versions:
- 23Z: sub second.
- 23ZD: sub second, date.
- 23ZN: center second.
- 23ZS: center second.
- 23ZSD: center second, date.
