Honestly, fishing and hiking don’t necessarily require a super rugged watch. Water resistance yes. I think anything from Tudor, Sinn, Seiko with 200m water resistance will be fine.

Naomi Uemura wore a Seiko Captain Willard to the North Pole. I wear my Seiko SLA049 often doing outdoor activities for almost 2 years and it’s been fine.

I would first check to make sure it wasn’t magnetized. I bought a very expensive Oris watch and it was running -1hr per day. I ended up buying an inexpensive demagnetizer and trying it and sure enough that was the problem. After demagnetizing it, it ran at about-8sec a day. Later I learned you can take a traditional compass and hold it near a watch and if moves slightly the watch may have some level of magnetism.