i just bought a Serbia case, hands, back and dial. the crystal is cracked. i need a replacement. the crystal has an hourglass bevel on both the 3 and 9 sides the crystal is 27.5mm wide, and 2.7mm at the thickest point. looking for a replacement. Also need a period ETA movement date at 3 o'clock position.[[File:crystal.jpg|none|auto]]