No, not that I know.
You're right about the G-Shock, at least of what I experienced. Cheap, tough and reliable.
DM51 is the german standart hand grenade.
The DM61 we were equipped with at that time, too, is even more powerful, but we did not want to blow it out of all proportions
It looks like this now:
I don't wear it a lot, but it has a strong immaterial value to me.