Long time no posting here in the G-shock forum, but I just stealthed my GW-5600J and it was supereasy - so I would like to share this with you.
I did it with Revell Airbrush Clean - just put it on with a q-tip and left it on for 20 minutes - after that time I could brush the paint of easily with an old toothbrush (okay, I was picking around with a toothpick near the "G-SH" after 3 minutes, so if I would have not been so impatient it would have come out without a scratch)
I bought the stuff in a German toystore. So maybe this is an option for everyone in Europe who can´t get his hands on Goo-Off or similar products.
For me the GW5600-J looks PERFECT now.
Greetings from Germany