Watches changed for different work days; COuldn’t wear my solarCitixens for days with arc welding 😉
And one day I think I needed more light… or maybe the Ti Eagle tac was dead… can’t remember,but I carried the Rofis Jr10 for a couple days.
Creating, building, and adapting life and life tool to live in the last frontier.
Alaskan, Adventurer, Engineer. 
Arc welding + solar powered object = magic smoke. 😀
Either that or instant time travel; as my watch suddenly runs Very, VERY fast. 😉