Casio's digital wristwatch, F-200, was released in 1979.
I introduced it before CASIO F-100 Although it is a successor model, there are extremely few in existence, so it is thought that it did not sell well at the time.
Since this is a rare model, if you search for “CASIO F-200” online, over 99% of the results will be for the current standard model, the “CASIO F-200W.” If you want to learn more about this specific model, please search using terms like “CASIO F-200 1978” or “CASIO F-200 vintage.”
（F-30 As was the case in the past, I would like people to stop giving a similar model number to a completely different model from the same manufacturer...)

The only differences with the F-100 are that the F-100 had four buttons lined up in the front, but the F-200 has two buttons in the front and two on the left, and the method for setting the time has been slightly changed (improved).

Like the F-100, the F-200 also has a sister model (55QS-24) with a stainless steel body that uses the exact same module (module 55), but this is also an extremely rare model.

Old digital watches made in Japan are quite well made, and this model, which has been on the market for more than 40 years, is still going strong, but there is nothing that can be done about the aging of the urethane strap.
I pulled out this model for the first time in a while and took a photo, but the genuine urethane belt tore off after I took the photo (lol).