The Patek Philippe looks OK , I have other uses for $1.5 million. I would build something for the burnout comp at Summer Nats for example , and spend the rest on pizza and fried chicken. hehe
I was told when I was given the watch that a spark is not possible from an automatic watch , unlike a battery type.
I kinda tried to cover my butt by saying 'apparently' , as I have no actual proof. I do know that naked flame is prohibited for coal mines , no oxy cutting or grinding. I worked in hard rock mining in WA.