Still my 48 year old Rolex Air-King Date. 35 years ago, I let my (then) 10 year-old son wear it, when he kept breaking the watches I had given him. I figured the Rolex could stand the abuse. I took it away from him several months later after he smashed the crystal, broke the rotor post, broke the stem, and trashed the Oyster bracelet! I returned it to health, and put it back in my collection. After market bracelet. That is not lint on the dial. The finish has begun to flake a bit.
Newly acquired May 71 Pogue, just back from the hands of Seiko Supremo, @Sir Alan .. And here it is with a couple of its brethren, more details on https://omegaforums.net/threads/seikos.33518/page-59