Hmmm, I have a certified chronometer from a very well respected Swiss manufacturer which I treasure. It is, however much I'd like like to say otherwise, pathetic in comparison to the average 2 quid petrol station digital in terms of accuracy. It needs a service at about the same interval as most quartz watches need batteries but at many times the cost. The wind up timex i had as a kid was less accurate, of course, but not the casios my kids had. I love it, but I understand why old fashioned Navigation resulted in the Caribbean islands being named the West Indies!
If anyone is about to give me a lesson in Nautical Horology, I was joking - please allow me some latitude. And having set that one up, I'm off to set my chronometer by the pips on the TV in the kitchen, the TV in the lounge, Fm Radio, DAB radio... Oh no, they're all different!