About this caliber
Base caliber ETA Unitas 6497-1, 16 1/2''
17 jewels
18,000 vibrations per hour
3/4-bridge with escape wheel island of Steinhart production
Radial, decentralized Geneva stripes
Pallet fork bridge pearled
Two-spoke screw balance
Bevelled swan-neck fine adjustment of Steinhart production
Skeletonized and brushed ratchet wheel
Perlage under the ratchet wheel
Technical details
- Movement
- -
- Display
- Analog
- Jewels
- 17
- Power reserve
- 46 hours
- Frequency
- 18,000 vph (2.5 Hz)
- Hands
- Hands: Hours, Minutes, Small Seconds
- Diameter
- 36.6 mm
- Height
- -
- Parts
- -