High life components

Last weekend I went for a ride with some mates and as the chat was primarily about bikes we got onto the topic of how reliable bike components are these days which got us thinking about high life components that still work flawlessly.

As combined brake levers/gear shifters are continually used on every ride making 100’s of gear shifts, this is the component we concentrated on. They must still work without skipping a beat to qualify and must be index shifting (none of this old skool style:-):

My particularly poor effort are: Shimano Ultegra at 4,700miles

My mates Shimano 105’s are at 7,500 miles

So, for a bit of fun, who has the ‘London taxi’ equivalent brake level/gear shifters out there to take the title?