I spent two weeks last winter rebuilding a shutter counter, measuring each hesitation against a dial face with no patience for interpretation. The lesson was not nostalgia: an honest instrument gives fewer excuses and better evidence.
Accuracy has a sound
The best working objects speak in clicks, stops, engraved numbers, and small resistances. They ask for alignment: aperture set, frame advanced, pressure steady, eye awake.
Modern software keeps sanding those edges away. The teams I trust still build like machinists, leaving calibrated marks where a distracted user can find the truth of the system.
Precision is respect made visible at one-sixteenth of an inch.