AS 1716-771, Mainspring, Automatic
SIRINOX mainspring for AS cal: 1716.
- Fits cal: 1716, 1717, 1741, 1742, 1820, 1831, 1839, 1837
Technical data AS cal: 1716
- 17/2 jewels, automatic, sweep second.
- S: = 11.5''' 25.6 mm.
- H: = 4.00 mm.
- N: = 18.000 A/h.
- Power reserve: 41 h.
- Mainspring: 1.00 x 11 - 0.115 - 360