There was always speculation, then leaks, but now, Apple has embraced its metal 3D printing story in full by publishing a detailed case study on why and how it 3D prints all of its Apple Watch Ultra 3 and titanium Apple Watch Series 11 cases. It won't name the brand of laser powder bed fusion 3D printer used, except to say its has six lasers, which narrows down the field quite a bit. The materials is 100% recycled aerospace-grade titanium powder, which helped the company save 400 metric tons of raw titanium in 2025 by using 50% less via 3D printing.