Among my collection, this is definitely the gold-est one I have. The Twin Mode Quartz Majesta SGP, with 9063A movement. By cutting down the Quartz oscillator used from two to one, and have the single Quartz doing two functions at the same time, time and thermalcompensation, they managed to have slimmer watch comparing to the discontinued Twin Quartz lines. This belongs to the first batch of the line, launched as 1984 model, manufactured 1983 April.
Since it came with the original ultra slim bracelet, it looks marvelous in the sense of collecting, not wanting to take them apart.