If you collect Depression glass, adding an opaline, jadite, or EAPG (Early American Pressed Glass) rooster or two can be the finishing touch to the room.
Features include steel case and bezel, Silvered opaline dial with black Roman numerals, Blue cabochon crown, and a pair of black alligator strap.
Ladies and men's models offer stylish construction and cutting edge technology such as GMT (Greenwich Mean Time) indicators, 100 hour power reserves, calendars, and Opaline dials to keep you up to date no matter where you travel.
It is rather softer and less dense than crystallized quartz, its hardness being about 6.5 and its specific gravity 2.6, the difference being probably due to the presence of a small amount of opaline silica between the fibres.