Watchlords

You may own an old watch that says “Incabloc” on its dial. This was rather common, back in the days. If the name is unknown by most of the people that are not into watches, there was a time when it was very popular. Back in the mid-20thcentury, the “Incabloc” trademark was a sign of quality and excellence for watches, to the point that brands would print it on their dials. Just like “Intel Inside” turned its name into a key criterion of purchase more recently…

https://monochrome-watches.com/incabloc ... -industry/

Good read - quite a feat of engineering for the twenties.