What is the difference between caliber 6498-1 and 6498-2?
There are two variations of the ETA/Unitas 6498 including the 6498-1 and 6498-2. The -1 beats at 18,800vph while the -2 beats at 21,600vph and is COSC. The -2 typically costs more.
Part Interchangeability
There are some differences in parts as well. This was outlined by lysanderxiii on wus:
The -2s (operating at 21,600 bph) have the following interchangeable with the slower -1s:
- Pallet Bridge
- Stem
- Sliding Pinion
- Winding Pinion
- Crown Wheel Ring
- Click Spring
- Yoke Spring
- Setting Wheel
- Intermediate Setting Wheel
- Case screw
Have you noticed any other differences? Please comment below.
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