The MR-G series started out in 1996 and lasted through 1999 and were sold only in Japan. Marketed as "toughness dressed in elegance", for the "older, professional" crowd supposedly. A few years later they resumed the MR-G line with different models. The first model was the MR-G 100 in stainless steel. Here's a MR-G 100TZ-5 which came out in 1997.
Functions are basic. Stopwatch, timer, alarm, signal, light. This model is titanium and has a special engraved clasp as all the "TZ" models do. I personally prefer the titanium models as they are more comfortable being lighter than the SS models. The bracelet is a tad tight, but I managed to find an extra bracelet link which is on the way from Japan. I'll be buffing the clasp out tonight. One might assume titanium MR-G's are expensive, and they were 3-400 bucks back in the day, but 20 years later you can find them for under 100. Snagged this one for less than 90.
I was a strict square man until I came across the early MR'G's, now I've become quite enamored with them. Here's my little collection so far, all are titanium "TZ" models except for the anadigi 131 which only came in one variety:
You may call me MR ferGfour now ;)