The top plate of the PC-1 exhaust gas detector is made of the same A7075 alloy, also known as Extra...magnesium and silicon, and has a 50µm thick nickel base coating, and is made in polished brass that has been properly bitten Complete, and has an excellent sound field...
The movement is (without date) Co-Axial 8912, with a silicon balance spring and a coaxial escapement. The watch is of course a METAS astronomical watch...
Facebook said on Friday that after a year of pandemic shutdown, its Silicon Valley office will begin to open to workers in May, but without additional allowances...