Interesting point by G-Central. What does F17 think? Is the much-discussed GW-5000 replacement in the works? I think it's more likely than not that a GW-5000 refresh/update commeth:
The GW-5000-1JF is not listed but not dead: While the expected GMW-B5000 and GW-B5600 series are listed along with some of the popular 5600 models, the absence of the fan-favorite GW-5000-1JF screw-back model is a glaring omission, but relax. It is still listed at Gshock.jp and is still in production. Casio probably prefers to give more attention to the newer full-metal and Bluetooth squares which are in a similar price range. Looking on the bright side, maybe it’s an indication that some sort of updated GW-5000 is coming soon (perhaps with a Bluetooth module or a non-Bluetooth module similar to solid gold G-D5000-9). Alternatively, maybe there just wasn’t enough space for it in the catalog.
Download the Casio Watch Collection 2019 Vol. 1 catalog as a 12MB PDF file here.