Vintage Omega Swiss-made windup mechanical movements, both front and back, are crystal see-through. The face color is a little faded (I'm not sure why, this is how I got it 20 years ago). This collectible Omega is in working condition but needs some speed adjustments to keep accurate time. Right now, it delays 4 minutes every 24 hours or so. I've had it in a safe all these years. Please look at the pictures closely to make a discussion. This is sold as is. I will be shipping on Thursday, Friday, and Saturday only.