Last week I found this GWM5600 on eBay:
The band and bezel were pretty beaten-up but I didn't buy it for that - I just wanted its guts. I've got one of these on the way:
and I wanted to put the GWM5600's module into the 5500TS to upgrade it to both solar and atomic as opposed to simply solar. I still may do this mod in the future but I'll need to pick up another 3063 module. I'm assuming the mod will be possible, being that the 5500TS contains the 3160 module, the same contained in the 5600GK. I've successfully swapped those modules so I don't see why I couldn't do it again.
The first thing I noticed about the white GWM5600 was that the crystal differed from the black version of the same watch, having a white ring below the solar panel as opposed to a red one. Liking the more subtle look, and disliking both bands that came with my DWM5600s (for different reasons), I created another Frankenstein:
This one goes a bit further than my previous mod, having an original module/module case of a white DWM5600, the bezel of a black DWM5600, and the straps from a DW5600E. Initially, I tried using the DW5600E's bezel but it was too small, something I was not expecting.
Here, you can see the white on the module case (or whatever it's called):
Obligatory wrist shots:
So, not quite a GW5000 but it's about as close as I'm going to get unless my financial situation changes I didn't realize the bands between the two DWM5600s were different prior to seeing it in person; the black version has a similar band to the majority of the 5600 line, whereas the white version is the same, thicker band as found on the 5600KG. Had it not arrived in such poor condition I would have attempted to dye it black or something.
The next obvious step would be to buy the GW5000 band and put it on this watch, something I may do. If you have a good source, please post it blow. Anyway, thanks for looking!