Hi ctime.....
It's a wonderful watch. I have Cal 8500, but I think 1861/1863 is sexier..........
Full winding (about 90- 100 turn) will give you 50-55 hours or 2.2 days (Mine is 59 hours so almost 2.5 days).
So wind fully, then add every day about 30 - 40 turns. That should be sufficient. Repeat to full winding again after not using it for sometimes.
Regards
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