The SUS line ranged from 1992 to 2000 and comprised of many calibers from 4S15/12 to many quartz ones, all midsized up to around 38mm diameter. Targeting the youth of the day, the two engineers wanted to introduce analogue time to the digital populace youth. The interesting philosophy was that the watch design must first draw the eye to the hands for quick timetelling, then to the dial and finally to the bezel. Hence, all SUS hands are very legible and distinctively styled many with the squared hour hand and 4 o'clock date window. Bezels are alway plain with no distracting hash marks nor numbers.
The pepetual model came in the two dial colors of blue/purple and black. Interesingly this perpetual model is the only 200M rated with a lume pip in its otherwise plain bezel which clicks ever so smoothly. Bracelet and head are quite hefty.