[NBJack]

Not a great comparison. I presume you are trolling.

Mechanical watches have been around for roughly 500 years (about 4x-5x tbe time since the first program, depending on how you count), which is a substantial amount of time to iterate on core functionality. Even then, watches until the 1970s (when quartz was introduced) were often imprecise enough to lose 15 minutes/day.

The Voyager probes have both lost several instruments, were built with substantial amounts of redundancy, all to the adjusted for inflation cost of about $3.94B US dollars. Maintenance per year is estimated to be about $5M, including the occasional software update.