I've got a strange watch one too. My dad died 2 years ago this week. He was ill for about 6 weeks beforehand in hospital, declining, then improving, declining then improving. Was a bit of a rollercoaster. But then my watch started going funny about 10 days before he died and it eventually stopped. And 2 other things just suddenly stopped working in the house at the same time. I just knew then that this time it really was coming to the end for Dad - that his body was wearing out too. He died within about a week.
Soon after my watch started working again on its own for a while and then eventually stopped again and didn't start up so I got a new battery thinking that's all it was. But this time last year, just before the anniversary of his death, my watch just stopped again. After a few day went back to normal.
Coincidence probably, with the timing of it. But then this year, a few days before the anniversary of his death, exactly the same thing happened AGAIN. My watch stopped, and started on its own a few days later. It's still going now so not a battery issue.
Also, we took my mum abroad for a few days about 6 weeks after he'd died. We walked to see a church and without warning a busker who had been having a rest from playing the saxaphone in front of the church suddenly started playing one of my dad's favourite songs, the one that was played as we walked into his funeral service. It was like he was sending a sign, that's how it felt.
Then about 4 weeks later, DH and i went away for a special wedding anniversary and in the taxi on the way back to the airport on the radio came another of my dad's favourite songs, also played at his funeral, it was my mum and dad's "our song". That particular record is not played a lot these days at all, it's an old one, and the previous few songs playing on the same station had been modern pop so it really got my attention.
Of course, it could all be coincidence, all those things. But I like to think they were signs.