How do Apple and other manufacturers pack so much computing power into tiny wristwatches? Atomic Delights has taken a look at Apple’s Watch Craftsmanship videos and has put together an amazingly detailed analysis of how Apple goes about making the Apple Watch with multiple different materials, whether it’s gold, stainless steel or aluminum.

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When it comes to the gold Apple Watch Edition, Atomic Delights writes that “Apple appears to have eschewed any revolutionary alchemy and instead, applied an innovative work hardening process to create gold that is (claimed to be) significantly harder than the typical 18kt used by other watchmakers.”

The video shows that Apple starts off with raw gold ingots that get sliced into a particular thinness and then get hardened to make the material more durable. After this and a couple of other steps, Apple inspects the flattened ingots for density variances using an immersion ultrasonic tester before shaping them in a CNC mill to make them look more like the Apple Watch casings we see in the final versions of the device.

This is, of course, only a fraction of the manufacturing process and doesn’t tell us anything about installing the device’s digital crown or making its clasp. If you want complete details on how every Apple Watch is made, we recommend checking out Atomic Delights’ full analysis by clicking here.

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