Ever carried three drinks back from the bar and started to sweat in case your hands didn’t prove steady enough? Then spare a thought for the man whose day job involves adjusting components smaller than a hair in a watch worth thousands.

And unlike a game of operation, if he messes up he doesn’t just lose a go; someone’s son will never get their heirloom, so he has to know the precise home of the 234 separate elements that keep this Omega Speedmaster Professional ticking.

Give thanks, then, to the likes of Manfredi Jewels, for the fact that the mechanical investment on your wrist will endure long after any smartwatch has become redundant.

Check the entire feature over at watch experts Hodinkee.