I was looking at the Casio calculator catalogue recently, and I noticed there are a lot of different models. They're all broadly the same, but each one has slightly different combinations of features and appearance. The watch collectors on YouTube show that there's been hundreds of different Casio watches as well. I wonder why they create so many different models. Could it be related to the work culture of the Japanese companies? Or do they just want to have a different product for every use case?

My uninformed guess is: that makes their section of the watch store take up more space, making a customer think: "so many casios, i don't even need to look at the other brands"

A decent number of "gotta have them all" fans/whales?

https://shockbase.org/watches/stats.php

Watches: 6670

Most people who wear watches buy one watch and wear it for 5-10 years, owning more than 3 (casual, dress, cheap durable one for manual labor) is highly unusual. So people tend to be very picky about fashion/style/colors, more so than something like a shirt or shoes that get cycled out regularly. Also have to factor in different wrist sizes.

Wristwatches are sort of unique in that they are technology that you literally wear, so it's important that they look and work exactly how you want.