Boy... I've got to pull out some of my old recommendations and tips! I used to look at the new/young guys and chew them out for not having a watch. I learned the hard way too by forgetting my watch one day! It was a bad lesson I did not enjoy learning.
I had to get after a number of people over the years and as I'm getting out of tournaments I noticed a dangerous trend starting a while ago - angler counting on their phones and GPS only for time. I saw that bite several people the last few years I did much tournament fishing!
Get a watch. In fact, be a little djkimmel OCD and do like a few of my time-challenged partners - strap an extra waterproof watch to your trolling motor cable! I saw that save a few people over the years. Haven't seen anyone do it in quite a while. Sounds like it needs to make a comeback!
GPS antennae's fail. Phones run out of juice. Timex watches take a licking and keep on ticking! Two watches - even better!!
