SLGC001G. The name Tentagraph was an amalgamation of its several properties: ten beats per second, three-day power reserve, and automatic chronograph.
The model is not a limited edition timepiece but it may as well have been one as units allocated to Malaysia were very limited. I suspect the reason was more because of its high price point. At RM60,600 per piece, Grand Seiko has decided to priced it at a level never seen before. I suppose, distributors may have been nervous to commit as the demand for such watches at these new prices was unknown then.
At the moment, only the SLGC007G is available. After a quick inspection I decided to get it.