The Oxy range is a Citizen sub-brand, and GlassD is a range of watches within that brand.
The watch was released in the 1999/2000 timeframe, and had 5 colour variations.
The watch uses the same D510 "shutter" module was the 1481010 Neophilia model show previously.
The watch by default, shows a mirrored display with inverse seconds, and pressing the bottom right button shows the time. Other modes are alarm, chronograph, and timer.
The unusual feature is the hinges around the buttons, which allow the watch face to rotate. This means that although the strap is quite stiff, the watch is very comfortable to wear.
The watch has a model number of D510-S69888, and a catalogue number of VO10-5565K. The original sale price in 2000 was 10,000 yen.