I got the Yellow and Red cases from watches I ordered on shopnbc. My thinking was simple why not get the second case too if the watch is still cheaper here and comes with a case. Anyway the Yellow case is not only a different color but seems to be heavier and much better in its assembly. I would think the color wouldnt make a difference but oh boy it does in my casees. The red one came with the top foam not glued in and the presure valve was not glued to the plastic screw and not to mention the case had inperfections all around little scrapes here extra plastic there that needed to be cut off. I understand that mass produced items oftem have minor flaws. These should have been found in the inspection process. You may say the same thing I did a little glue to the foam and head of the screw is nothing. Your right a little glue and all is well right. Wrong lack of glue doesnt account for the yellow case being heavier or a finished product. The watch case will still work as a watch case as it doesnt take much to do that but the construction of this red case was poor and obvisouly not the same quality as my yellow one.