I recently picked up a new Seiko Alpinist (SARB017). This is the fourth watch that I have owned with the Seiko 6R15 movement. I also have owned many watches with ETA 2824 base movements. In my experience the Seiko 6R15 is superior in many ways to the ETA 2824:
- Longer power reserve (48-50 hours vs. 38-40 hours);
- More consistent, and generally more accurate, timekeeping;
- Much smoother hand winding;
- More efficient and smoother self-winding mechanism;
- More shock resistant; and
- More reliable and less prone to mechanical problems.
I don't know what the direct cost comparison is between the two base movements, but Seiko's with the 6R15, particularly Japanese domestic market models, are priced very competitively and are an excellent value. Based on this, I am assuming that the 6R15 base movement costs less, and if so I think that makes it far superior to the ETA 2824.
That's my take. What's yours?