Had both. Sinn was the better all rounder and stood up to daily wear without any issues due to the teg case and bracelet.
I did like the LLD but the main reason for its departure was the size on my small 6.5" wrists (notably the lug to lug length).
Sounds from your post the 857 would perhaps suit your needs better. No point in keeping a watch you can't fully enjoy IMO.