This is the DW-5200C-1 — the Hero G-Shock.
G-Shock fans will know this as the G that saved the whole range, after lacklustre sales of the DW-5000 and WW-5100. G-Shocks may have ceased to exist at this point, but along came the DW-5200 to save the game…or, more accurately, a clever television commercial that finally sold the vital US market on the quality of the G-Shock range.
To sell the indestructibility of the watch, Casio had a hockey player hit the watch into a goalie’s glove and show it still working, and intact.
It seemed to work; G-Shocks have been made ever since and a variation on the original style, the 5600, is still in production.
The only downside is the lack of availability of bands and bezels. Until a few years ago the bezel for the 5600C was still being made which fit the other early Gs (5000, 5100, 5200) but now they are out of production so while an after-market replica is available, it isn’t an exact match.